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"The first night using this my 4-month-old went from sleeping 3 hours to a full 8!" -Lauren M.
Read more ReviewsZen Sack™ Classic
Zen Sack™ Classic
Nested Bean
ZKC604-S
850013617333
39760615112889
$ 39.99
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Trusted by over 2 million parents
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Safely weighted to mimic your touch
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Improves sleep in 1-3 nights
Scientifically designed for self-soothing and sounder sleep. The gently weighted Zen Sack Classic calms like your embrace by providing comforting pressure only where babies are naturally held. This secure feeling eases the swaddle transition and helps babies self-soothe through sleep disruptions, leading to deeper periods of sleep that are essential for healthy development
The gently weighted Zen Sleep Sack helps your baby sleep through every sleep phase. Designed to help babies self-soothe and fall asleep independently, the Zen Sack eases the transition from swaddle to sack, and prevents sleep regressions and disruptions: An essential for sleep training.
▪ Two-way zipper makes diaper changes a breeze
▪ Zipper covers, cuddly seams and soft tags protect your baby’s skin
▪ Can be worn backwards by tummy sleepers who can roll independently
▪ Grow-with me adjustable snaps
▪ 0.5 TOG comforts in all weathers
Sizes from 0 to 24 months
Fabric details:
▪ 100% breathable cotton
Care details:
▪ Wash in cold water on delicate cycle
▪ Tumble dry on low heat
The center weight mimics your reassuring palm and calms with only a few ounces
▪ The safe alternative to all-weighted sleepwear
▪ Applies gentle pressure that is tested for breathing safety
▪ Passes mandatory and voluntary children's product tests
▪ Tested for suffocation hazard, pulmonologist verified
▪ Hip-healthy. Does not hinder mobility
Frequently Bought
Zen Sack® Winter
$ 52.99
Zen One™ Classic
$ 45.99
Related Products
About this item
The imported Zen Sack is machine mashable, made from 100% breathable cotton, and scientifically designed for self-soothing and sounder sleep.
The Zen Sack® Classic is Read More
The imported Zen Sack is machine mashable, made from 100% breathable cotton, and scientifically designed for self-soothing and sounder sleep.
The Zen Sack® Classic is a gently weighted breathable sleep sack that calms like your embrace by providing comforting pressure only where babies are naturally held.
This secure feeling eases the swaddle transition, encouraging self-soothing and helping babies sleep through disruptions, leading to deeper periods of sleep that are essential for healthy development. Safer than loose blankets in your baby's crib, the Zen Sack® Classic is perfect for babies up to 24 months.
- Made with 100% bamboo cotton fabric.
Incredibly soft and breathable but cozy enough to keep baby warm, the Zen Sack® Classic wearable blanket has a TOG rating of 0.5 for year-round comfort.
Sizes: Small (0-6M); Medium (6-15M); (Large (15-24M).See product images to learn more.
- Perfect for tummy sleepers.
The Zen Sack wearable blanket is reversible and can be worn backward - perfect for babies who roll independently.
- Safely calms with only a few ounces.
Designed in line with research from human factors safety experts and pediatric pulmonologists, the Zen Sack is safely weighted only where babies need it, not where they don’t. The Zen Sack has been rigorously tested and is scientifically backed by a recent university-led weight safety study.
- Special features.
Unlike a standard sleep sack, the Zen Sack features gently weighted Cuddle Pad™ technology that soothes like your embrace. Adjustable snaps grow with your baby and a top-quality 2-way zipper ensures easy changes.
- Trusted by over 2 million families.
Parents report deeper, more peaceful sleep within 1-3 nights.
Read LessZen Sleep Sack Reviews
Marissa A.
It does not help my baby sleep. I feel the sack is way to long for a one month old baby and the middle doesn't really resemble your hand
Brittany B.
I’ve loved these sleep sacks for both of my babies. It truly is the answer to getting your baby sleeping longer spans of time. Life saver!
Karen T.
Love these sleep sacks for their ease of use. Baby is in without bending arms, zipper opens sack up flat and baby loves the comfort of the weighted front. So easy.
Stacy H.
My now 4 YO daughter only slept in these. So many sleepless nights until I caved and bought one and I wound up buying multiple. So when I just had my son, I KNEW to buy. I now have 3 different kinds and all are life savers for those colicky rough and restless nights. I highly recommend this brand to all new parents!
KelseaMarie H.
Took longer then expected but he loves it
Chelsea S.
We loved our sleep sack! My little one sleeps so much better when wearing this. He has less awakenings and sleeps longer! I’ve gifted two of these to new mama friends already because I truly believe a good nights sleep is the best gift for any new mama! (And baby!)
Rosa D.
I was skeptical at first, but when my little one slept almost all night the first night wearing it (and every night since) I became a believer! Loving this sleep sack and already shared the website with a few friends with babies as well!
Hilarie C.
Got it hoping to finally have something to help my 10 month old sleep. While I like the design and the zipper opening, it has not helped at all with her sleeping.
EMILEE. G.
I’ve order from here before and has no problems with getting the correct thing I ordered but my last order I put in they sent me the wrong item. Just very disappointed because my son needs the zen ones and I ordered that but got the complete wrong order.
Lynnette M.
Perfect.
Diane H.
It was a gift so I have nothing more to say
Shauna S.
My grandson has slept so much better since using the sleep sack. The material is super breathable and washes well. I plan on buying more for him as he grows!
Karen T.
In and out is so easy. Love this sleeping sack.
Kayla D.
It works wonderfully for my baby girl. She sleeps all night.
Carolin T.
I love nested bean sleep sacks and we use it since ever. :) they are awesome and worth the money since they give enough room to grow with the baby and last for a few months.
Carolin T.
Love nested beans and my daughter too. Very comfortable and warm. Perfect.
Marcus D.
Awesome quality! My son went from crying multiple times before falling asleep in his crib, to falling asleep in 3 to 5 mins!
Elizabeth M.
Didn’t work for my baby but is a solid product.
Melanie A.
Best thing ever created...My son falls asleep fast with this Zen sleeper...During the day he fights his sleep but at night when we use his sleep sack he's out like a light...Thank you so much for this invention. .
Sandy D.
Great quality and helps baby settle faster and sleep longer.
Rosalie U.
Love it ! Helps alot especially without the sleeves to keep them cooler at night and for my baby who doesn't like being completely swaddled!
Kate L.
The 15-24 months is way, way, waaaaaay too long! It's so much longer than the size 6-15 months. We LOVE Nested Bean, but this size is unusable. There needs to be an in-between size/length.
Kathleen B.
I love this sleep sack. My son doesn't sleep at all without it. Now he sleeps almost completely through the night at 4 months old. Just bought a second one as a backup & one for a friend. Highly recommend!
Natalie K.
My son was 7 months old when I made this purchase. He was not sleepy well independently. Now he sleeps so much longer stretches and even occasionally puts himself back to sleep. He’s almost 9 months old now & we love it!
Angie E.
I don’t normally review products but this sleep sack was a game changer! My two month old was sleeping on me every night because she would literally cry as soon as I put her down. She hated being swaddled because she loved her arms to be free. This sleep sack allows her to soothe herself without startling herself awake. Night 1 she slept by herself in the bassinet and going on night 3 still is sleeping on her own. I thought this product sounded to good to be true…it was worth every single penny. Highly recommend!
Susan V P.
Great product
Kacey T.
Love it
Lindsey R.
Love these sleep sacks, my five month old is sleeping through the night!
Justin L.
It isn't working like it should be on fact it's making her sleep less im at my wits end dunno what to do I'm seriously about to take her to the Dr cause she won't sleep
Rachel R.
BUY IT NOW. I was extremely skeptical but I have a 7 week old who was waking every 2-3 hours but the first night I put him in this he slept for 5-6 hours STRAIGHT!
Rachel S.
The best color and perfect product to continue with consistent sleep!
Dung K.
I love it!
Lindsey L.
My daughter was sleeping through the night most nights at 2mo old, but suddenly at 3mo, started waking excessively. She’s now 14mo and has spent the last year waking anywhere from 5-15 times a night, every night, with 6-8 being her average. Got an ad for this and thought we’d try it. The first two nights in it she only woke 3 times, which was great, but after those two nights it was right back to her usual frequent wakings, so I think it was just a fluke. The sack is nice and soft, feels well made, and i like that the tag is on the outside so that it doesn't potentially bother her. As far as actually helping with sleep, it’s been almost two weeks and we haven't had improvement. I’ll keep it anyway, but it’s not any more helpful than any other wearable blanket for her.
Amy B.
We ordered the nest bean because our 5 month old kept waking multiple times through the night. After getting and using it right away for several nights in a row and then 1 night without I noticed it did improve her waking throughout the night. She slept for a longer period and a bit less restless. Now it wasn't a merraculous change and difference, it took a few days to notice a difference and even then she preferred to be swaddled but can't be because she's rolling over. Was it work the price I think so. The material is super soft and cool to the touch. I do believe the weight on the chest helps her feel snuggled but not like a swaddle.
Katie C.
I think it helps my child sleep better than without having anything, but I was expecting it to be slightly more weighted to help with the startle reflex. We are also in some sleep regression or teething so it’s hard to totally tell.
Elizabeth L.
Both my boys do so well with sleep sacks!! I love this company and am definitely a customer for life!
Carly H.
These sleep sacks have been a huge life saver since my baby was 2 months old. 10/10 recommend!!!!
Alana M.
This is a great transition from her sleep suit on warmer days as she’s learned to roll! She loves feeling like there’s a light hand on her to keep her safe
Brittany L.
we have been using nested bean ,since my bean was a wittle bean HAHA! we started with the swaddle zen sack and have now moved to their last and final size for our now toddler. She has always slept amazing and I know it is in part to this amazing product! If you're a new parent and looking for a sleep sack look no further! start from the beginning and start the routine!
Alana
Helps to soothe my daughter to sleep
Sarah
Our baby loves the sleep sack for the weight and we love that he can’t kick blankets off. He is a wiggle worm and these are lifesavers. We have 2 smalls and 2 mediums so far!
jgracia r.
Best purchase ever!!!! Our baby is sleeping through the night without any waking up!
Faith Z.
Loved the ZenSack. Lightweight and easy for my baby to move around in.
Jessica S.
Definitely helped my baby go to sleep quicker during the “9 Month” sleep phase. She was having terrible separation anxiety at night and this sleep sack definitely made a difference!
Micah G.
I’m not going to lie, I was pretty disappointed in my sleep sack because I guess I was expecting it to be a little more weighted or to be more evenly distributed. Unfortunately, it hasn’t helped my 4 month old sleep any better.
Veronica H.
Bought for grandson my daughter loves it!
Marisela
Good quality but didn’t not improve son’s sleep. Sometimes he likes to sleep on his stomach & sometimes on his back. I get nervous if the weight is on his chest & he turns over on his stomach so now he is laying on the weighted bean
Kayla
Never got this item.
Amanda A.
My baby loves it! She definitely sleeps longer when she has her little sack on. Highly recommend
DIANDRA
Love this thing! Now that baby’s arms are free, he can self soothe and go back to sleep. First time baby was able to sleep through the night happened with this sleep sac!!!
Allie P.
my son has been sleeping in these sleep sacks since he was 4 months old and he’s now almost 2. they have been a LIFESAVER. he has slept all night long ever since we transferred him to this instead of a swaddle. i HIGHLY recommend these to any moms looking for sleep remedies!!!!
Tricia P.
A perfect sleep sack. The weighted bean is just was my little one needed while transitioning out of a swaddle. He loves it!
Malinda P.
I used this for my first son two years ago and I was scared at first because of the weighted part but once I put a monitor and noticed he was fine, I was relieved. I now have twins and I got these sleep sacs again. I love them. The twins love them. They sleep well with them on. And I do like that it has a two way zipper. This is helpful for night time diaper changes without having to move them around too much. I would definitely recommend. I plan on getting the 6-12 months in a few months.
Jackie L.
We are loving the Winter Zen Sack! We have the classic but it has started getting colder and don't want to use a blanket so just bought two of these and it keeps her so warm! Definitely recommend it wroth every dollar!!
Anastasiia N.
My baby wasn't sleeping very well at the day care so I was looking for something to help her sleep and found nestbean. Since I brought it there she started to sleep way better so I bought another one for night time at home.
Erica L.
I love the quality of this sleep sack! I bought on a 3am nursing feed as I was fed up with waking up all the time. My son has been sick a lot and we just transitioned him to his room versus ours. I can’t say it’s gotten any better, but I will say he is more comfortable and transitioning well. I think in a few weeks he’ll be sleeping through the night! I can only hope!
Lisa H.
I wouldn't say it improved his sleep by much, but I do like the fact that it is basically a blanket that he can actually sleep with.
Sheree W.
We have been a user for 3 years with both kids. We love these sleep sack they help them sleep better for sure.
Molly
My baby didn't like it
Eric .
The once 1am wakeup is no longer happening.
Tabitha
I have a 13 month old boy and purchased this because it said following a sleep schedule woth the zen sleep bag would work, he fights me evwrytime when I try to put the bag on and he doesn't sleep a long time. I have tried all the recommendations from zen sack and nothing works. My boy is still waking up in the middle of the night even In the day I have used it, still doesn't change my little ones sleep habits
Sulema A.
Love these sleep sacks! My baby sleeps so much better having his sleep sack on - the weight really helps him feel like he’s being held . Highly recommend!!!
Kalon
Work perfectly for our daughter
Kalon
This is my second time ordering them! My daughter loves them
Kristian V.
My baby has loved it so far! She's in that middle stage of needing to be swaddled due to reflex but also needs her arms not fully constricted, so the Zen sack is perfect!
Shaley
Good sleep sack. Like that it’s weighted. Doesn’t keep him asleep but it keeps him warm.
Alexandra
Love these! They help so much!
Jennifer S.
We love this sleep sack! It was such a smooth transition from the medium size to the large. I was worried about the weights in the chest being different, but our son did not skip a beat! He sleeps so well in these. He is a stomach sleeper and can maneuver very easily!
Allison
Nice sleep sack but didn’t do anything to improve baby’s sleep.
Caitlin F.
Got a different swaddle from another popular brand first but our daughter hated it! Decided to try this because she naturally has her hands close to her face. Sooo happy with this!! Second night we put her in it, she slept through the night…at 4 weeks old!!
Delores
Worked well
Amanda S.
I was skeptical at first but a serious godsend! I’ve had baby boy in his crib starting at about 2 months. I was up almost every 2 hours trying to put him back to sleep, taking almost an hour at a time. He’s had the Nested Bean Classic sleep sack for about a month now and he wakes up 1 time and is sleeping almost 6 hours straight! It took about 3-4 days for us and I seriously couldn’t be happier. I’m looking for 1 more classic to alternate and not sure if I’ll be needing to transition to the Winter style but looking into it! Just buy it!
Casey B.
Transitioned from the zen one to the zen sack. Was nervous that it would take some time for my baby to get used to it but she was still sleeping through the night day 1. Definitely recommend!
Alaina A.
Love the color and it’s very soft. My baby loves his sleep sacks
Solange
This is the best sleep sack ever, my 4 month old sleeps through the night. From 9:00 pm to 6:00 am. So finally we got some great sleep. So I have to buy a new one cuz she’s growing so fast.
Mindi
Very nice and soft
Cassidy W.
We love this sleep sack! Our 12 week old, who was a good sleeper prior to this purchase, is now an even better sleeper! The Zen Sack is so soft and well made. Easy to get baby in and out of. I love that the zipper allows for super easy nighttime diaper changes. Wonderful purchase and wish I would’ve purchased sooner!
Jessica F.
Our daughter has been struggling with sleep since she has come home. She was in the NICU for 19 days and the transition to sleeping at home was very hard on her. She would only sleep a few hours at night and then be extremely overtired- crying for hours. As well as, sleeping for 10 minute durations at a time during the day. On the very first night of using the nestedbean our daughter slept for 7 hours straight! We are trilled with the nestedbean and our little girl is so much more happier!
Casey
Switched from the zen one to the zen sack. Was a little nervous but the transition was seamless. She is still sleeping great 10 hours a night
Jillian
Lifesaver for my youngest. She loved to be swaddled but started rolling and didn’t like the swaddles that allowed arm access but arms out. For some reason, this worked.
Excellent material, well made, sturdy. Seems like it will last us a long time.
Phyu T.
I dont usually spend time to write reviews but I want to share my experience for all sleep deprived parents out there. Before nested bean, my baby (5.5 months old) , he slept all night long with waking up like 4 times in between. He sleeps in his own crib but sometimes unable to put him down and needed to co sleep if necessary. We were so desperate and bought nested bean to give a try. On the first night , he slept 11 hours straight, and I was freaking out (checking hourly as he is still breathing or not) We used nested bean for 12 nights so far, he slept through the night half of the time (10-11 hours straight), some nights he woke up for the feed (6 hrs straight and then 4 hrs) and could be one or two bad nights (failed self soothe around 5am and need help with sleep). This is much better than it was before, buying nested bean sleep sack is a game changer for us.
ELIZABETH S.
Love these so much! The fabric is super soft, keeps baby warm and cool.
Mercedes
Love it
eliza m.
Will definitely purchase the swaddle when I have another baby.. my daughter loves it
Makenzie S.
We love our sleep sacks! We transitioned to these from swaddles and the first night the babies both slept for a 4 hour stretch which is great for them! I like that it’s breathable so they don’t get too hot and the weight is only on their chest so it feels like a hand providing comfort, but still allows them to move.
Terry G.
Got for my great granddaughter and she is in heaven wearing her new swaddle. Thank you
Lauren
My daughter didn’t like being confined
Tiffany W.
The sleep sack is great for my newborn because he doesn't like having his arms swaddled. I think it could be better if the sleeves were long, rather than the inch or so.
It also rides up as my son moves around, so periodically, I have to pull down the front or the back because its ridden up so much.
It's also difficult to burp my son while he's wearing this, so I have to remove it for midnight feedings/burnings.
Be does sleep well in it, so that's a plus.
Anna
My grand baby loved it
Allison H.
Beautiful
Maggie T.
Silky and soft material, easy to wear. Baby seems cozy wearing it.
Tanja
Great product and little one sleeps great
Diana L.
Is very good quality and also very cute! But my baby just don’t like every time that she used she will cry for hours
Sheldon B.
The swaddle still doesn’t help my child sleep at night; however, it’s great quality.
Samantha
My 4 month old is sleeping through the night! Love this product!
Daisy B.
I was eager to try this out in hopes that it would help out my son sleep for longer stretches at night but it doesn’t seem to make a difference. His longest stretch is about 4 hours every night and it was the same before making this purchase. I wish I could say it is working out for us but it’s not.
Taylor C.
I LOVE THIS SLEEP SACK! I like how it’s not fully weighted. It feels cooler. My 18 month old was going through a sleep regression when we got this and sure enough it helped him start sleeping through the night again
Kristie D.
This is my second child, her sister was a notorious BAD sleeper. We were so hopeful and so dedicated to making sure the second became a “good sleeper” …. But alas, within a week of being home things were going off track. We even were co-sleeping, which we SWORE we would never do again. It took hours to get her down.
Then I got the Zen One sleep sack, and it literally was like MAGIC. I am not one for reviewing, I’m not being paid, I just want to share so maybe I can help another desperate parent! This sleep sack is, as many others have said, a GAME CHANGER. Literally night one she was in her pack and play sleeping soundly. We have been using it for one week now and last night my 8 week old daughter slept ALL NIGHT (8:30 - 5:25). I highly, highly recommend this sleep sack!!!!
Hawo A.
Very nice
Grace
We love it
Marissa A.
It does not help my baby sleep. I feel the sack is way to long for a one month old baby and the middle doesn't really resemble your hand
Brittany B.
I’ve loved these sleep sacks for both of my babies. It truly is the answer to getting your baby sleeping longer spans of time. Life saver!
Karen T.
Love these sleep sacks for their ease of use. Baby is in without bending arms, zipper opens sack up flat and baby loves the comfort of the weighted front. So easy.
Stacy H.
My now 4 YO daughter only slept in these. So many sleepless nights until I caved and bought one and I wound up buying multiple. So when I just had my son, I KNEW to buy. I now have 3 different kinds and all are life savers for those colicky rough and restless nights. I highly recommend this brand to all new parents!
KelseaMarie H.
Took longer then expected but he loves it
Chelsea S.
We loved our sleep sack! My little one sleeps so much better when wearing this. He has less awakenings and sleeps longer! I’ve gifted two of these to new mama friends already because I truly believe a good nights sleep is the best gift for any new mama! (And baby!)
Rosa D.
I was skeptical at first, but when my little one slept almost all night the first night wearing it (and every night since) I became a believer! Loving this sleep sack and already shared the website with a few friends with babies as well!
Hilarie C.
Got it hoping to finally have something to help my 10 month old sleep. While I like the design and the zipper opening, it has not helped at all with her sleeping.
EMILEE. G.
I’ve order from here before and has no problems with getting the correct thing I ordered but my last order I put in they sent me the wrong item. Just very disappointed because my son needs the zen ones and I ordered that but got the complete wrong order.
Lynnette M.
Perfect.
Diane H.
It was a gift so I have nothing more to say
Shauna S.
My grandson has slept so much better since using the sleep sack. The material is super breathable and washes well. I plan on buying more for him as he grows!
Karen T.
In and out is so easy. Love this sleeping sack.
Kayla D.
It works wonderfully for my baby girl. She sleeps all night.
Carolin T.
I love nested bean sleep sacks and we use it since ever. :) they are awesome and worth the money since they give enough room to grow with the baby and last for a few months.
Carolin T.
Love nested beans and my daughter too. Very comfortable and warm. Perfect.
Marcus D.
Awesome quality! My son went from crying multiple times before falling asleep in his crib, to falling asleep in 3 to 5 mins!
Elizabeth M.
Didn’t work for my baby but is a solid product.
Melanie A.
Best thing ever created...My son falls asleep fast with this Zen sleeper...During the day he fights his sleep but at night when we use his sleep sack he's out like a light...Thank you so much for this invention. .
Sandy D.
Great quality and helps baby settle faster and sleep longer.
Rosalie U.
Love it ! Helps alot especially without the sleeves to keep them cooler at night and for my baby who doesn't like being completely swaddled!
Kate L.
The 15-24 months is way, way, waaaaaay too long! It's so much longer than the size 6-15 months. We LOVE Nested Bean, but this size is unusable. There needs to be an in-between size/length.
Kathleen B.
I love this sleep sack. My son doesn't sleep at all without it. Now he sleeps almost completely through the night at 4 months old. Just bought a second one as a backup & one for a friend. Highly recommend!
Natalie K.
My son was 7 months old when I made this purchase. He was not sleepy well independently. Now he sleeps so much longer stretches and even occasionally puts himself back to sleep. He’s almost 9 months old now & we love it!
Angie E.
I don’t normally review products but this sleep sack was a game changer! My two month old was sleeping on me every night because she would literally cry as soon as I put her down. She hated being swaddled because she loved her arms to be free. This sleep sack allows her to soothe herself without startling herself awake. Night 1 she slept by herself in the bassinet and going on night 3 still is sleeping on her own. I thought this product sounded to good to be true…it was worth every single penny. Highly recommend!
Susan V P.
Great product
Kacey T.
Love it
Lindsey R.
Love these sleep sacks, my five month old is sleeping through the night!
Justin L.
It isn't working like it should be on fact it's making her sleep less im at my wits end dunno what to do I'm seriously about to take her to the Dr cause she won't sleep
Rachel R.
BUY IT NOW. I was extremely skeptical but I have a 7 week old who was waking every 2-3 hours but the first night I put him in this he slept for 5-6 hours STRAIGHT!
Rachel S.
The best color and perfect product to continue with consistent sleep!
Dung K.
I love it!
Lindsey L.
My daughter was sleeping through the night most nights at 2mo old, but suddenly at 3mo, started waking excessively. She’s now 14mo and has spent the last year waking anywhere from 5-15 times a night, every night, with 6-8 being her average. Got an ad for this and thought we’d try it. The first two nights in it she only woke 3 times, which was great, but after those two nights it was right back to her usual frequent wakings, so I think it was just a fluke. The sack is nice and soft, feels well made, and i like that the tag is on the outside so that it doesn't potentially bother her. As far as actually helping with sleep, it’s been almost two weeks and we haven't had improvement. I’ll keep it anyway, but it’s not any more helpful than any other wearable blanket for her.
Amy B.
We ordered the nest bean because our 5 month old kept waking multiple times through the night. After getting and using it right away for several nights in a row and then 1 night without I noticed it did improve her waking throughout the night. She slept for a longer period and a bit less restless. Now it wasn't a merraculous change and difference, it took a few days to notice a difference and even then she preferred to be swaddled but can't be because she's rolling over. Was it work the price I think so. The material is super soft and cool to the touch. I do believe the weight on the chest helps her feel snuggled but not like a swaddle.
Katie C.
I think it helps my child sleep better than without having anything, but I was expecting it to be slightly more weighted to help with the startle reflex. We are also in some sleep regression or teething so it’s hard to totally tell.
Elizabeth L.
Both my boys do so well with sleep sacks!! I love this company and am definitely a customer for life!
Carly H.
These sleep sacks have been a huge life saver since my baby was 2 months old. 10/10 recommend!!!!
Alana M.
This is a great transition from her sleep suit on warmer days as she’s learned to roll! She loves feeling like there’s a light hand on her to keep her safe
Brittany L.
we have been using nested bean ,since my bean was a wittle bean HAHA! we started with the swaddle zen sack and have now moved to their last and final size for our now toddler. She has always slept amazing and I know it is in part to this amazing product! If you're a new parent and looking for a sleep sack look no further! start from the beginning and start the routine!
Alana
Helps to soothe my daughter to sleep
Sarah
Our baby loves the sleep sack for the weight and we love that he can’t kick blankets off. He is a wiggle worm and these are lifesavers. We have 2 smalls and 2 mediums so far!
jgracia r.
Best purchase ever!!!! Our baby is sleeping through the night without any waking up!
Faith Z.
Loved the ZenSack. Lightweight and easy for my baby to move around in.
Jessica S.
Definitely helped my baby go to sleep quicker during the “9 Month” sleep phase. She was having terrible separation anxiety at night and this sleep sack definitely made a difference!
Micah G.
I’m not going to lie, I was pretty disappointed in my sleep sack because I guess I was expecting it to be a little more weighted or to be more evenly distributed. Unfortunately, it hasn’t helped my 4 month old sleep any better.
Veronica H.
Bought for grandson my daughter loves it!
Marisela
Good quality but didn’t not improve son’s sleep. Sometimes he likes to sleep on his stomach & sometimes on his back. I get nervous if the weight is on his chest & he turns over on his stomach so now he is laying on the weighted bean
Kayla
Never got this item.
Amanda A.
My baby loves it! She definitely sleeps longer when she has her little sack on. Highly recommend
DIANDRA
Love this thing! Now that baby’s arms are free, he can self soothe and go back to sleep. First time baby was able to sleep through the night happened with this sleep sac!!!
Allie P.
my son has been sleeping in these sleep sacks since he was 4 months old and he’s now almost 2. they have been a LIFESAVER. he has slept all night long ever since we transferred him to this instead of a swaddle. i HIGHLY recommend these to any moms looking for sleep remedies!!!!
Tricia P.
A perfect sleep sack. The weighted bean is just was my little one needed while transitioning out of a swaddle. He loves it!
Malinda P.
I used this for my first son two years ago and I was scared at first because of the weighted part but once I put a monitor and noticed he was fine, I was relieved. I now have twins and I got these sleep sacs again. I love them. The twins love them. They sleep well with them on. And I do like that it has a two way zipper. This is helpful for night time diaper changes without having to move them around too much. I would definitely recommend. I plan on getting the 6-12 months in a few months.
Jackie L.
We are loving the Winter Zen Sack! We have the classic but it has started getting colder and don't want to use a blanket so just bought two of these and it keeps her so warm! Definitely recommend it wroth every dollar!!
Anastasiia N.
My baby wasn't sleeping very well at the day care so I was looking for something to help her sleep and found nestbean. Since I brought it there she started to sleep way better so I bought another one for night time at home.
Erica L.
I love the quality of this sleep sack! I bought on a 3am nursing feed as I was fed up with waking up all the time. My son has been sick a lot and we just transitioned him to his room versus ours. I can’t say it’s gotten any better, but I will say he is more comfortable and transitioning well. I think in a few weeks he’ll be sleeping through the night! I can only hope!
Lisa H.
I wouldn't say it improved his sleep by much, but I do like the fact that it is basically a blanket that he can actually sleep with.
Sheree W.
We have been a user for 3 years with both kids. We love these sleep sack they help them sleep better for sure.
Molly
My baby didn't like it
Eric .
The once 1am wakeup is no longer happening.
Tabitha
I have a 13 month old boy and purchased this because it said following a sleep schedule woth the zen sleep bag would work, he fights me evwrytime when I try to put the bag on and he doesn't sleep a long time. I have tried all the recommendations from zen sack and nothing works. My boy is still waking up in the middle of the night even In the day I have used it, still doesn't change my little ones sleep habits
Sulema A.
Love these sleep sacks! My baby sleeps so much better having his sleep sack on - the weight really helps him feel like he’s being held . Highly recommend!!!
Kalon
Work perfectly for our daughter
Kalon
This is my second time ordering them! My daughter loves them
Kristian V.
My baby has loved it so far! She's in that middle stage of needing to be swaddled due to reflex but also needs her arms not fully constricted, so the Zen sack is perfect!
Shaley
Good sleep sack. Like that it’s weighted. Doesn’t keep him asleep but it keeps him warm.
Alexandra
Love these! They help so much!
Jennifer S.
We love this sleep sack! It was such a smooth transition from the medium size to the large. I was worried about the weights in the chest being different, but our son did not skip a beat! He sleeps so well in these. He is a stomach sleeper and can maneuver very easily!
Allison
Nice sleep sack but didn’t do anything to improve baby’s sleep.
Caitlin F.
Got a different swaddle from another popular brand first but our daughter hated it! Decided to try this because she naturally has her hands close to her face. Sooo happy with this!! Second night we put her in it, she slept through the night…at 4 weeks old!!
Delores
Worked well
Amanda S.
I was skeptical at first but a serious godsend! I’ve had baby boy in his crib starting at about 2 months. I was up almost every 2 hours trying to put him back to sleep, taking almost an hour at a time. He’s had the Nested Bean Classic sleep sack for about a month now and he wakes up 1 time and is sleeping almost 6 hours straight! It took about 3-4 days for us and I seriously couldn’t be happier. I’m looking for 1 more classic to alternate and not sure if I’ll be needing to transition to the Winter style but looking into it! Just buy it!
Casey B.
Transitioned from the zen one to the zen sack. Was nervous that it would take some time for my baby to get used to it but she was still sleeping through the night day 1. Definitely recommend!
Alaina A.
Love the color and it’s very soft. My baby loves his sleep sacks
Solange
This is the best sleep sack ever, my 4 month old sleeps through the night. From 9:00 pm to 6:00 am. So finally we got some great sleep. So I have to buy a new one cuz she’s growing so fast.
Mindi
Very nice and soft
Cassidy W.
We love this sleep sack! Our 12 week old, who was a good sleeper prior to this purchase, is now an even better sleeper! The Zen Sack is so soft and well made. Easy to get baby in and out of. I love that the zipper allows for super easy nighttime diaper changes. Wonderful purchase and wish I would’ve purchased sooner!
Jessica F.
Our daughter has been struggling with sleep since she has come home. She was in the NICU for 19 days and the transition to sleeping at home was very hard on her. She would only sleep a few hours at night and then be extremely overtired- crying for hours. As well as, sleeping for 10 minute durations at a time during the day. On the very first night of using the nestedbean our daughter slept for 7 hours straight! We are trilled with the nestedbean and our little girl is so much more happier!
Casey
Switched from the zen one to the zen sack. Was a little nervous but the transition was seamless. She is still sleeping great 10 hours a night
Jillian
Lifesaver for my youngest. She loved to be swaddled but started rolling and didn’t like the swaddles that allowed arm access but arms out. For some reason, this worked.
Excellent material, well made, sturdy. Seems like it will last us a long time.
Phyu T.
I dont usually spend time to write reviews but I want to share my experience for all sleep deprived parents out there. Before nested bean, my baby (5.5 months old) , he slept all night long with waking up like 4 times in between. He sleeps in his own crib but sometimes unable to put him down and needed to co sleep if necessary. We were so desperate and bought nested bean to give a try. On the first night , he slept 11 hours straight, and I was freaking out (checking hourly as he is still breathing or not) We used nested bean for 12 nights so far, he slept through the night half of the time (10-11 hours straight), some nights he woke up for the feed (6 hrs straight and then 4 hrs) and could be one or two bad nights (failed self soothe around 5am and need help with sleep). This is much better than it was before, buying nested bean sleep sack is a game changer for us.
ELIZABETH S.
Love these so much! The fabric is super soft, keeps baby warm and cool.
Mercedes
Love it
eliza m.
Will definitely purchase the swaddle when I have another baby.. my daughter loves it
Makenzie S.
We love our sleep sacks! We transitioned to these from swaddles and the first night the babies both slept for a 4 hour stretch which is great for them! I like that it’s breathable so they don’t get too hot and the weight is only on their chest so it feels like a hand providing comfort, but still allows them to move.
Terry G.
Got for my great granddaughter and she is in heaven wearing her new swaddle. Thank you
Lauren
My daughter didn’t like being confined
Tiffany W.
The sleep sack is great for my newborn because he doesn't like having his arms swaddled. I think it could be better if the sleeves were long, rather than the inch or so.
It also rides up as my son moves around, so periodically, I have to pull down the front or the back because its ridden up so much.
It's also difficult to burp my son while he's wearing this, so I have to remove it for midnight feedings/burnings.
Be does sleep well in it, so that's a plus.
Anna
My grand baby loved it
Allison H.
Beautiful
Maggie T.
Silky and soft material, easy to wear. Baby seems cozy wearing it.
Tanja
Great product and little one sleeps great
Diana L.
Is very good quality and also very cute! But my baby just don’t like every time that she used she will cry for hours
Sheldon B.
The swaddle still doesn’t help my child sleep at night; however, it’s great quality.
Samantha
My 4 month old is sleeping through the night! Love this product!
Daisy B.
I was eager to try this out in hopes that it would help out my son sleep for longer stretches at night but it doesn’t seem to make a difference. His longest stretch is about 4 hours every night and it was the same before making this purchase. I wish I could say it is working out for us but it’s not.
Taylor C.
I LOVE THIS SLEEP SACK! I like how it’s not fully weighted. It feels cooler. My 18 month old was going through a sleep regression when we got this and sure enough it helped him start sleeping through the night again
Kristie D.
This is my second child, her sister was a notorious BAD sleeper. We were so hopeful and so dedicated to making sure the second became a “good sleeper” …. But alas, within a week of being home things were going off track. We even were co-sleeping, which we SWORE we would never do again. It took hours to get her down.
Then I got the Zen One sleep sack, and it literally was like MAGIC. I am not one for reviewing, I’m not being paid, I just want to share so maybe I can help another desperate parent! This sleep sack is, as many others have said, a GAME CHANGER. Literally night one she was in her pack and play sleeping soundly. We have been using it for one week now and last night my 8 week old daughter slept ALL NIGHT (8:30 - 5:25). I highly, highly recommend this sleep sack!!!!
Hawo A.
Very nice
Grace
We love it
Frequently asked questions
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How much weight is in the Zen Sack® Classic sleep sack?
All Zen sleep sacks feature a built-in Cuddle Pad™, which weighs just 30 grams (Small size) 60 grams (Medium size) and 90 grams (Large size and distributed across the chest). Our baby sleep sacks are safely weighted in key areas as opposed to all-weighted sleep sacks or weighted blankets, which the AAP has deemed unsafe for infants.
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What’s the difference between Nested Bean weighted baby sleep sacks products?
Nested Bean offers a variety of sleep sacks, all of which are designed to calm like your embrace: Zen Sack® Classic, Zen Sack® Premier, Zen Sack® Winter and Zen Sack® Quilted. The difference between our weighted sleep sacks is the fabric used for construction. Zen Sack® Classic is made from 100% breathable cotton, and is perfect for year-round use. Zen Sack® Premier ,made from 70% rayon from bamboo for luxurious softness and 30% cotton for strength, is lightweight for warmer temps. Zen Sack® Winter is made from 100% cotton, with a 2.5 TOG and heavy poly-fiber filling for colder weather. And Zen Sack® Quilted is a cozy transitional sleep sack, for when temps start to drop.
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Are Nested Bean weighted baby sleep sacks safe for babies who roll over?
All Zen Sack® sleep sacks were designed for rollers and tummy sleepers; they help babies get longer, more peaceful sleep through all growth stages. The Small and Medium size sleep sacks have a gently weighted Cuddle Pad™ on the front that is so light and flexible, it nearly flattens when baby rolls to their tummy. The sleep sack can also be reversed and worn backwards for tummy sleepers who roll independently, placing the weighted center on baby's back for uninterrupted comfort all night.
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What is the Cuddle Effect™—and how do Nested Bean sleep sacks trigger it?
The Cuddle Effect is a proven metabolic response that babies experience when they are held, that triggers relaxation and well-being, improves sleep and promotes healthy development. Research on Deep Touch Pressure (DTP) shows that babies experience the Cuddle Effect when they feel gentle pressure in the places you naturally hold them. Nested Bean sleep sacks are designed with gently weighted Cuddle Pads™ that calm like your embrace and trigger the Cuddle Effect for longer sleep.
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Do Nested Bean weighted sleep sacks meet industry safety standards?
Nested Bean baby sleep sacks adhere to all Consumer Product Safety Commission guidelines around product construction, flammability and more. The Cuddle Pad™ in our sleep sacks is self-contained and cannot cause overheating, and the gentle weight does not restrict movement: For example, the Zen Sack™ sleep sack is safe for tummy sleepers, rollers and side sleepers.
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When should you start using a Nested Bean sleep sack?
Once babies start rolling, swaddling stops—and it’s time to transition to a baby sleep sack. Only Nested Bean sleep sacks contain Cuddle Pads™ that are gently weighted to ease the transition from swaddle to sleep sack, so babies experience uninterrupted comfort and longer sleep.
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How long does it take Nested Bean sleep sacks to work?
As with all our gently weighted Zen Sleepwear™, most parents report that our baby sleep sacks improve their baby’s sleep in 1 to 3 nights.
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What is TOG—and how does it differ between Nested Bean sleep sacks?
TOG is a measure of thermal insulation. It is a commonly used term the textile industry to indicate how warm clothing is. The higher the TOG in baby sleep sacks, the better thermal insulation it provides and the warmer it is. For example, the Zen Sack® Classic sleep sack has a TOG of 0.5, perfect for year-round use. The bamboo Zen Sack® Premier sleep sack has a TOG of 0.3, for warmer weather. The Zen Sack® Quilted sleep sack has a TOG of 1.0, great as temps begin to fall. And the Zen Sack® Winter sleep sack has a cozy TOG of 2.5, just right for chilly nights.
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What is the Grow-with-Me feature of Nested Ben sleep sacks?
Nested Bean sleep sacks contain 2 sets of snaps on the shoulders. The bottom snap offers a snug fit, while the top snap offers more room as your baby grows.
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How do Nested Bean sleep sacks hold up in the washing machine?
All Nested Bean weighted baby sleep sacks are made of the highest-grade fabrics, and are designed to be super durable and withstand multiple washings. To protect the fabric quality, we recommend washing our baby sleep sacks in cold water, on a gentle cycle and tumble dry on low heat.
Put sleep disruptions to bed with the Zen Sack™
Seamlessly transition from swaddling
When rolling starts, swaddling stops—and some babies miss their cozy swaddle. Prevent wakeups with the gently weighted Zen Sack: So soothing, but tummy sleeper safe.
Stop sleep regressions
Rolling, sitting up, teething: New milestones can mean sleep regressions. Add the gently weighted Zen Sack to your sleep routine to help create positive associations with bedtime.
Help baby sleep through the night
Nighttime wakeups? The gently weighted Zen Sack is so comforting, it helps babies self-soothe—so they fall back to sleep on their own.