"The first night using this my 4 month old went from sleeping 3 hours to a full 8!" -Lauren M.
Read more ReviewsZen Sack™ Winter
Zen Sack™ Winter
Nested Bean
ZKW801-S
850013617777
41225761030329
$ 49.99
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Trusted by over 1 million parents
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Safely weighted to mimic your touch
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Longer sleep in 1-3 nights
The gently weighted Zen 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
▪ Exceeds safety standards by 8x + Pulmonologist approved
▪ Exceeds all AAP Guidelines
Sizes from 0 to 24 months
Fabric details:
▪ Made from 100% cotton and plush poly-fiber filling. Our warmest option is perfect for cooler rooms or colder weather.
Care details:
▪ Wash in cold water on delicate cycle
▪ Tumble dry on low heat
▪ Exceeds the most stringent safety standards by 8x
▪ Safe alternative to all-weighted sleepwear
▪ Adheres to all Consumer Product Safety Commission requirements
Bundle & Save
Zen Sack™ Winter 2 Pack
$ 79.98
Regular price
$ 99.99
Zen Sack™ Winter & Zen Sack™ Classic 2-Pack
$ 71.98
Regular price
$ 89.98
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Real Parent Reviews
Patricia L.
My new Nephew will be snug as a bug in this. He will be born late fall so this will be perfect.
Samantha G.
This was perfect for the few cold winter months in our home. We found baby’s room got the coldest and we needed the winter sack after using the classic for a few months. I found it quite a bit warmer and thicker than the classic. Baby’s legs and body were always warm and body heat was kept in the winter sack. It was just what we needed!
Paige C.
Baby slept comfy and cozy all winter!
Joanne D.
Fantastic for restless toddlers!
Christine O.
Sydney LOVES this sleep sack. We got the winter one, because i wanted something a little thicker (even tho it is spring time) our house tends to be cold. It is super functional between the shoulder snaps and the bottom zipper up the side.
Monica H.
She loves it . I lay her down awake give her the paci and in 10 minutes she’s asleep.
Esmerelda L.
Soft and warm, and calming for my little one. I recommend it to every new parent I know! Love it!
Nicole R.
This is the 2nd sack I've purchased from NB and I'm disappointed. My son is only 2 months old and has already outgrown the 0-3 and 0-6 month sacks. I even went by weight and height measurements for ordering the 2nd sack and it still only lasted roughly 2 wks before he outgrew it. I don't know if it shrinks with washes or what, but considering the price it was disappointing.
Dariela S.
Very good, I love it ❤️
Anastasia Z.
Didn’t work for my child
Rebecca P.
It’s a nicely made sleep sack, but unfortunately it made no difference in our little girls sleep pattern
Megan L.
Certainly a good sleep sack. Fabric is nice, good quality, washed well. I got the heavy tog one for my 7mo old. It seems to keep him cozy when the A/C kicks on or in his crib by the window at Grandma’s house where there is winter. House temps are typically between 66-72F. While a cute idea, I didn’t noticed any extra benefit from having some heaviness on the chest.
Denise D.
I have ordered a total of 7 assorted sacks. We love them all and send one to daycare . It’s part of her sleep training.
Christina N.
At first transitioning my 4 month out of swaddling into a sleep sack was hard. Starling reflexes took awhile to go away. It did take some time for my little one to adjust to this sleep sack. When she did get use to i, I use it every single night. It’s probably top 5 best investments I made for my infant! Considering purchasing another one!
Haikuhy K.
I love these sleep sacks! Especially this winter version. My son kept waking up in the middle of the night because he was cold and once I switched over to the winter sack he sleeps soundly again! Highly recommend
Elizabeth P.
I love this sleep sack and plan on buying another one. My babe is 7 weeks old and was waking every 2 hours. By night 3 of wearing this sleep sack she was sleeping 4-5 hour stretches! I was skeptical but it works!!
Joanna L.
We like this sleep sack. The fabric is soft and smooth and a nice weight and overall much nicer than other brands. I also like the blue color a lot. Our baby moves a lot in her sleep and I think the egg must be a tad uncomfortable when she sleeps on it but it is hard to tell since she's a baby.
Karen J.
This is the best sack for our baby. She loves it and allow her to move when she sleeps
Brandy S.
I really love this! I feel as though it has made falling back to sleep much easier for my baby. The fabric is very thick and warm, perfect for the winter time.
Delta P.
Very easy to use! A little snug around the arms but doesn’t seem to bother baby.
Allyson T.
Love nested bean!
Jessica W.
I like that the winter sleep sack eliminates layering when I put my son to bed because it keeps him plenty warm in our 65 degree house. However, I have noticed no difference in his sleep at all. So, for us, I could have gone with something a little cheaper.
Morgan S.
We love the winter sleep sack! Stays warm and cozy all night!
Tiffany J.
Works great!! My daughter loves and has been sleeping through the night with this sack
Allyson T.
Love nested bean!
Danielle M.
I love the thickness of this sack. We use it with a bamboo bodysuit and it’s been perfect. So snuggly !
Kristy S.
My daughter refused to sleep anywhere other than on our chests. If we put her down, she would only sleep 30minutes max. We tried every sleep sack and swaddle. Nothing helped until we tried nestedbean. Now she sleeps in her own bed for 3-4 hour increments.
Stacy F.
Love how warm and cozy they are! Wish there were more options in colors- the white stains easily
Katelyn S.
Bought this for my grandson. My daughter says he sleeps better when he wears it!
Rosa A.
I had try the swaddle before but did not work for us. Then i return it and got this one and my baby loves it! He has been sleeping through the night (started by waking up 2 times instead of 3 times). My baby is 6 months old. Thank you , can't wait to buy more later ! Highly recommended! Try it and find the one that works for you guys
Hossien K.
Great for the colder months!
Trisha L.
We absolutely love this! Thick and warm, perfect for layering during the cold months. Incredibly easy to put on and easy access diaper changes. I’ll be getting many more of these.
Whitley D.
He sleeps 7 to 7. Amazing!! We love all of the sacks, but our favorite is defiantly the winter one.
Megan M.
Since using our nested bean, our little one has been able to sleep 4-5 hours overnight! She used to be so restless and hasn’t been able to be swaddled with her arms in since about 2 weeks old! We’re all sleeping a bit easier thanks to this sleep sack!
Miriam H.
My baby loves it!!
Rebecca G.
We love the nested bean products
Alina H.
Absolutely love everything from this company.
Kristin P.
I have a 5 month old who has had a hard time getting longer stretches of sleep at night despite some well researched, logical approaches (routine during the day, increasing daytime feeds, sleep cues, etc...). I didn't expect a new sleep sack to be a miracle fix, but I did hope that maybe it would improve things a little. Overall, it is a well made, warm, sleep sack. But it definitely has not made any difference at all in my baby's sleep. And because of this, it was not worth the high price. But I am happy for those who have found it helpful!
Amber A.
Great quality, comfy and thick perfect for colder nights. As far as my child sleeping better I have not seen any changes in the past month with the sleep sack. It is my favorite sack to wear on my son though, my other sleep sacks are not as good quality.
Rebecca S.
This works really well for our daughter. She knows when she gets in her sack it’s bedtime. This is a must for our bedtime routine.
Angela K.
My grandson loves his sleep sack!!!!
Sarah P.
Baby likes it. It’s warm which is also great but I feel like it’s a little short to fit size 15 month
Britnii D.
Absolutely love this product! Definitely going to buy more, has helped my daughter sleep for 8-10 hours a night!
Vanessa P.
Love it! Baby sleep better since we got it!!!
Lisa S.
My 4 month old started rolling but is still learning, so at night he would roll on his belly then wake him screaming. The only things that has stopped him from going completely on his belly is this sleep sack! It has given me and my baby more than 2 hours of sleep again! The bags under my eyes thank you, nested bean!!!
Lauren S.
We love this sleep sack! The weighted penguin is a life saver and helps so much. We chose the winter one because we keep our home pretty cool and she hasn’t woke up sweaty or too hot at all even having a full fleece footie pajama on too! Amazing!
Elizabeth P.
The sleep sack is lovely and snuggly for my little one and I like the simple white design. Unfortunately her sleep has been no better when wearing it but at least she is cosy and warm!
Natalia F.
I found this sleep sack with my second. He is a lot more challenged with sleep than my first, I think this cozy sleep sack helps us just a bit more. I would recommend the thicker sack for a new born. We skipped swaddling and went straight to this.
Laura S.
Noticed a difference in sleep by night 2 - he is now sleeping most of the night :)
Lily S.
We love the bean sacks for our little baby bean. She had a regular weight and winter weight one in the 0-6 size but was starting to out grow them, so we got the next sizes up and they are still great. They are soft and warm and the little bean weight seems to help (and we have tried other sacks).
Nilam R.
We absolutely love this winter sleep sack! My son looks comfy, warm, and has been sleeping peacefully through the night!
Logan K.
My baby sleeps like an angel in this sleep sack. It has been a great transition from the swaddle
Kristina N.
I love this, my baby was already a great sleeper, but I was looking for a safe way to keep her warm and the winter weight cotton is wonderful.
Alyson W.
We love the 2.5 tog sack! Gives her the perfect amount of warmth without over heating and without the use of the blanket! I purchased a second one to switch out when one needs to be washed. I wish they made them for adults cause the fabric is so soft and comfy!
Linda H.
This was bought as a gift, Therefore I do not have the info to share.
At the time I purchased it, I indicated it was a gift. I know they were happy to receive it, and tried it, however from what was shared, I do not believe it made a difference.
Kaleb A.
My daughter had just became 4 months old in late December and a week or so goes by to where she had started waking up constantly throughout the night. Every so often my wife would nurse her back to sleep depending on how long ago she was nursed prior. Other times, I’d have to rock her back to sleep. Even these methods would work occasionally they wouldn’t thanks to her sleep regression. Bought the winter Zen Sack, put her to bed and she’s finally getting back to her normal 8-10hr stretches of sleep. Highly recommend! Don’t buy off Amazon - could have knock off items compared to the original manufacturer.
Robin N.
LOVE THIS! MY BABY SLEEPS COMFORTABLY AND HAD A SOLID NIGHT SLEEP!
Sarah D.
Wonderful! My son had trouble sleeping through the night so we got him the Zen Winter Sleep Sack and he’s slept through the night ever since, the whole family appreciates it! Nested Bean for the win!
Lindsay B.
I LOVE the winter Zen Sack. Our house gets pretty cold in the evening and it helps keep our little one warm and snuggled up. I love how thick and soft it is. Very comfy for our little girl.
Zorangel N.
I bought it for my daughter. I tried a classic swaddle but she doesn't like it, good customer service by the way. then, I got this one. She slept better but a little more problem with acid reflux
Laura L.
This product is great quality! I love the new way this is weighted. My daughter seems to enjoy it better!
Daniel R.
It definitely makes a difference! She goes to sleep much quicker than without it and it it keeps her warm!
Dacota C.
Our little man falls asleep faster and stays asleep longer with the winter zen sack! He couldn’t sleep without it!
Bridgette R.
Our sweet girl was waking several times through the night. Took a chance on Nested Bean and we haven’t looked back. She is now sleeping through the night every night and taking naps during the day, all while in her Nested Bean sack.
Justin w.
I absolutely love our nested bean! Baby sleeps SOOOO GOOD now!
Andrea B.
Oh wow. For weeks I have been enduring my daughter waking up every 60-90 minutes during the 4 month sleep regression. Last night I put her in this sleep sack for the first time. And she actually slept. She slept 9 hours in a row. 9 hours. In. A. Row. This sleepsack is life changing.
Donna A.
My son sleeps so well in this sack. We are so grateful!
Emily R.
I like the design and seems well-made, but unfortunately my daughter does not like it at all for night sleep (had TERRIBLE night of sleep that improved when went back to other style sleep sack - tried twice to make sure wasn't coincidence, and happened again). Daycare isn't allowed to use weighted sacks for naps, so it is not going to get used at all. I wish I hadn't washed/labeled both sacks before trying the first one and realizing it wouldn't work. I would've returned the unused one.
Monica R.
The winter sleep sack is truly like a sleeping bag. I was expecting more of a micro-fleece material. The material is nice but not what i expected. These sleep sacks are difficult for me to get on my incredibly active son. I don’t feel like the weighted option has made much of a difference in his sleeping habits either, unfortunately. I’m not sure I would spend as much money again, I would likely opt for a less pricey brand. I wish these would have worked for us. I would have bought stock if they improved our sleep!
Michelle S.
Now that it’s winter I noticed my son was chilly at night. Now since putting him in this he does wiggle around as much in the night. This weighted blanket is such a game changer, we love it!!
Becca S.
Our little guy loves his sleepsack. The Winter version is so nice because it keeps him warm. He sleeps for so much longer when he naps in this
Kayla H.
We have used the sleep sack for our first but now with our second, she is a stomach sleeper and this option was perfect. It is soft and seems very comfortable.
Florence A.
Nicely made. Thick, soft and cozy. My baby loves her sleep sack.
JORDAN S.
We started using the Zen Sack when we transitioned our two-month-old out of her swaddle and she has been sleeping in it every sense! The winter one keeps her nice and warm and she has been sleeping 6-8 hours stretches while it's on.
Ashley L.
I love how soft and plush this sleep sack is. My son also loves his new sleep sack. Definitely helps keep him warmer as well.
Melissa C.
We purchased the winter cotton a month ago and loved it so much purchased a second! It should be all season cotton because our little guy will use this all seasons! It is so comfy and soft I wish I had one for myself. Worth every penny!
Arianna L.
So far my baby is sleeping an extra two hours at night. I’ll take it!
Michelle P.
I accidentally bought purple thinking I had ordered gray. Their customer service was outstanding and sent me an exchange that day! It was my first time purchasing the thicker/winter sleep sac. Needless to say our transition from swaddle to arms out has been so easy! We love nested bean products! HIGHLY recommend to anyone with littles
Krista H.
Very nice material and nicely made! Live in southern Indiana where it’s usually colder here( cold weather coming) but afraid my 3 month old is too hot natured for it. Debated for a while on the winter or the cotton version…. The winter is definitely nice and cozy ❤️
Garland D.
We introduced the Zen Sack to our three month old and he started sleeping through the night immediately! He falls sleep quicker and gets more restful sleep. Will definitely be ordering more and recommending. 10/10!
Amanda L.
My babe didn’t like swaddles from pretty early on so we switched to the regular nested bean around 2 months. Now she’s 7 months and it’s winter and pretty cold. She loves the winter bean! It’s cozy like a comforter and she can still move around and kick her legs in it. We bought 2. These are our favorite sleep sacks by far.
Sara F.
Wonderful
Getsy C.
I've ordered from Nested Bean ever since I came across their ads. I have almost every item from their store but my favourites are the Zen sacks! This particular Winter Zen sack has a very soothing colour and keeps my son warm especially at night! I'm glad I got another colour too. Keep up the great word, Nested Bean :)
From a very satisfied mom of 1 :)
Makala J.
My son’s room always gets a bit colder than the rest of the house, and this blanket is the perfect weight. I rest a bit easier knowing he’s cozy and warm. He also sleeps really well in his nested bean sack. When I transitioned him out of the swaddle into this we only had about one night of fussing before he got used to it. Now, he loves having his arms free so he can stretch them out in all directions!
Linda T.
We bought this to help with the 4 month sleep regression our daughter is having. It hasn't helped at all so far but we are hopefully that once we get past this phase she will be able to sleep longer at night. Overall its a great product for what it is. we bought the winter version and keeps baby warm and toasty when its cold.
April U.
At first we were unsure if it was actually working but it was cold and I was glad baby had a safe way to keep warm anyway. Fast forward a couple weeks and it was laundry night and baby didn’t have a clean sleep sack to sleep in. We put her down without any sack and she woke up every 30-45 minutes. We finally realized it was likely due to her missing her sack! Once dry we put it on her during one of her wakings and she was out for the night!
Kathryn B.
We have used nested since my daughter was a newborn!! She loves it and sleeps like a champ! She is almost 2 and we still use it! I love the comforter one for winter!!!
Yvette S.
Great comfy fabric. Worth the money.
Rosie S.
My 5 week old baby is a Goliath and as much as I like the sleep sack, I mistakenly bought the 0-6 month zen sack assuming it would be appropriate. It will fit him for a pretty short period of time considering how the arm holes currently fit. He did sleep better the first night, had a rough night the second night and is doing pretty well thereafter. I may purchase more in the next size. Please advertise to check weights and length of infant as I assumed up to 6 months would fit a 5 week old longer than this will.
Stephanie P.
Fits great. Warm but not to heavy. The weighted tummy helps. My son is sleeping better and warm now that it’s winter
Kayla M.
Love this sleep sack for colder nights
Grace N.
Love the winter weight!
Chaya D.
Love the material and my daughter is sleeping beautifully since we got it.
Zoe M.
I’m in love with this new winter version! It helps keep my baby nice and warm & she sleeps a much longer stretch now!
Jessica H.
My daughter has been using the 0.5 TOG Zen Sleep Sack since she was 4 months old and we’ve loved it. Now that we’re in Winter (Coastal California) we realized the 0.5 was not cutting it at night. When this Winter one came it was so thick I was worried it would get her too hot at night. To my surprise it keeps her nice and warm, but not over heated. She’s been sleeping harder and falling asleep easier. Would definitely buy again!
Nicole M.
My 12 weeknight of loves the winter sleep sack! Whenever we put it on she starts going sleepy and knows it’s time for bed! She’s been sleeping 6-7 hour stretches with it!
Kelly V.
Our little guy seems so cozy in this!
Tiffany C.
This is perfect for winter. My baby transitioned to the crib and his room gets a little chilly at night. I can rest well knowing that this sleep blanket will not only keep him warm but give him comfort due to the weighted chest. He has been safely using it to sleep for a month. I'm not sure how he would sleep without it but I'm not willing to try it out. It has survived several washes already and the quality is great. I'd buy another one in a heartbeat.
Brittany B.
I had high hopes for this sleep sack, and was hoping it would solve all our sleep problems but, alas, it has not. It’s well made and warm (our bedroom where our son sleeps is a little chilly, so I do love this sleep sack for that reason), but I don’t think the weighted aspect does anything to make him sleep sooner or longer. He still cries every time we put him in it (like he did the others) so, at least in our experience, the beads don’t magically make him calm down or anything. He also isn’t sleeping longer or shorter in it — just about the same as the other sleep sacks. Like I said, it’s well made and warm but if you’re looking for a magic elixir, this isn’t it… at least it wasn’t for us.
Patricia P.
We love it
Patricia L.
My new Nephew will be snug as a bug in this. He will be born late fall so this will be perfect.
Samantha G.
This was perfect for the few cold winter months in our home. We found baby’s room got the coldest and we needed the winter sack after using the classic for a few months. I found it quite a bit warmer and thicker than the classic. Baby’s legs and body were always warm and body heat was kept in the winter sack. It was just what we needed!
Paige C.
Baby slept comfy and cozy all winter!
Joanne D.
Fantastic for restless toddlers!
Christine O.
Sydney LOVES this sleep sack. We got the winter one, because i wanted something a little thicker (even tho it is spring time) our house tends to be cold. It is super functional between the shoulder snaps and the bottom zipper up the side.
Monica H.
She loves it . I lay her down awake give her the paci and in 10 minutes she’s asleep.
Esmerelda L.
Soft and warm, and calming for my little one. I recommend it to every new parent I know! Love it!
Nicole R.
This is the 2nd sack I've purchased from NB and I'm disappointed. My son is only 2 months old and has already outgrown the 0-3 and 0-6 month sacks. I even went by weight and height measurements for ordering the 2nd sack and it still only lasted roughly 2 wks before he outgrew it. I don't know if it shrinks with washes or what, but considering the price it was disappointing.
Dariela S.
Very good, I love it ❤️
Anastasia Z.
Didn’t work for my child
Rebecca P.
It’s a nicely made sleep sack, but unfortunately it made no difference in our little girls sleep pattern
Megan L.
Certainly a good sleep sack. Fabric is nice, good quality, washed well. I got the heavy tog one for my 7mo old. It seems to keep him cozy when the A/C kicks on or in his crib by the window at Grandma’s house where there is winter. House temps are typically between 66-72F. While a cute idea, I didn’t noticed any extra benefit from having some heaviness on the chest.
Denise D.
I have ordered a total of 7 assorted sacks. We love them all and send one to daycare . It’s part of her sleep training.
Christina N.
At first transitioning my 4 month out of swaddling into a sleep sack was hard. Starling reflexes took awhile to go away. It did take some time for my little one to adjust to this sleep sack. When she did get use to i, I use it every single night. It’s probably top 5 best investments I made for my infant! Considering purchasing another one!
Haikuhy K.
I love these sleep sacks! Especially this winter version. My son kept waking up in the middle of the night because he was cold and once I switched over to the winter sack he sleeps soundly again! Highly recommend
Elizabeth P.
I love this sleep sack and plan on buying another one. My babe is 7 weeks old and was waking every 2 hours. By night 3 of wearing this sleep sack she was sleeping 4-5 hour stretches! I was skeptical but it works!!
Joanna L.
We like this sleep sack. The fabric is soft and smooth and a nice weight and overall much nicer than other brands. I also like the blue color a lot. Our baby moves a lot in her sleep and I think the egg must be a tad uncomfortable when she sleeps on it but it is hard to tell since she's a baby.
Karen J.
This is the best sack for our baby. She loves it and allow her to move when she sleeps
Brandy S.
I really love this! I feel as though it has made falling back to sleep much easier for my baby. The fabric is very thick and warm, perfect for the winter time.
Delta P.
Very easy to use! A little snug around the arms but doesn’t seem to bother baby.
Allyson T.
Love nested bean!
Jessica W.
I like that the winter sleep sack eliminates layering when I put my son to bed because it keeps him plenty warm in our 65 degree house. However, I have noticed no difference in his sleep at all. So, for us, I could have gone with something a little cheaper.
Morgan S.
We love the winter sleep sack! Stays warm and cozy all night!
Tiffany J.
Works great!! My daughter loves and has been sleeping through the night with this sack
Allyson T.
Love nested bean!
Danielle M.
I love the thickness of this sack. We use it with a bamboo bodysuit and it’s been perfect. So snuggly !
Kristy S.
My daughter refused to sleep anywhere other than on our chests. If we put her down, she would only sleep 30minutes max. We tried every sleep sack and swaddle. Nothing helped until we tried nestedbean. Now she sleeps in her own bed for 3-4 hour increments.
Stacy F.
Love how warm and cozy they are! Wish there were more options in colors- the white stains easily
Katelyn S.
Bought this for my grandson. My daughter says he sleeps better when he wears it!
Rosa A.
I had try the swaddle before but did not work for us. Then i return it and got this one and my baby loves it! He has been sleeping through the night (started by waking up 2 times instead of 3 times). My baby is 6 months old. Thank you , can't wait to buy more later ! Highly recommended! Try it and find the one that works for you guys
Hossien K.
Great for the colder months!
Trisha L.
We absolutely love this! Thick and warm, perfect for layering during the cold months. Incredibly easy to put on and easy access diaper changes. I’ll be getting many more of these.
Whitley D.
He sleeps 7 to 7. Amazing!! We love all of the sacks, but our favorite is defiantly the winter one.
Megan M.
Since using our nested bean, our little one has been able to sleep 4-5 hours overnight! She used to be so restless and hasn’t been able to be swaddled with her arms in since about 2 weeks old! We’re all sleeping a bit easier thanks to this sleep sack!
Miriam H.
My baby loves it!!
Rebecca G.
We love the nested bean products
Alina H.
Absolutely love everything from this company.
Kristin P.
I have a 5 month old who has had a hard time getting longer stretches of sleep at night despite some well researched, logical approaches (routine during the day, increasing daytime feeds, sleep cues, etc...). I didn't expect a new sleep sack to be a miracle fix, but I did hope that maybe it would improve things a little. Overall, it is a well made, warm, sleep sack. But it definitely has not made any difference at all in my baby's sleep. And because of this, it was not worth the high price. But I am happy for those who have found it helpful!
Amber A.
Great quality, comfy and thick perfect for colder nights. As far as my child sleeping better I have not seen any changes in the past month with the sleep sack. It is my favorite sack to wear on my son though, my other sleep sacks are not as good quality.
Rebecca S.
This works really well for our daughter. She knows when she gets in her sack it’s bedtime. This is a must for our bedtime routine.
Angela K.
My grandson loves his sleep sack!!!!
Sarah P.
Baby likes it. It’s warm which is also great but I feel like it’s a little short to fit size 15 month
Britnii D.
Absolutely love this product! Definitely going to buy more, has helped my daughter sleep for 8-10 hours a night!
Vanessa P.
Love it! Baby sleep better since we got it!!!
Lisa S.
My 4 month old started rolling but is still learning, so at night he would roll on his belly then wake him screaming. The only things that has stopped him from going completely on his belly is this sleep sack! It has given me and my baby more than 2 hours of sleep again! The bags under my eyes thank you, nested bean!!!
Lauren S.
We love this sleep sack! The weighted penguin is a life saver and helps so much. We chose the winter one because we keep our home pretty cool and she hasn’t woke up sweaty or too hot at all even having a full fleece footie pajama on too! Amazing!
Elizabeth P.
The sleep sack is lovely and snuggly for my little one and I like the simple white design. Unfortunately her sleep has been no better when wearing it but at least she is cosy and warm!
Natalia F.
I found this sleep sack with my second. He is a lot more challenged with sleep than my first, I think this cozy sleep sack helps us just a bit more. I would recommend the thicker sack for a new born. We skipped swaddling and went straight to this.
Laura S.
Noticed a difference in sleep by night 2 - he is now sleeping most of the night :)
Lily S.
We love the bean sacks for our little baby bean. She had a regular weight and winter weight one in the 0-6 size but was starting to out grow them, so we got the next sizes up and they are still great. They are soft and warm and the little bean weight seems to help (and we have tried other sacks).
Nilam R.
We absolutely love this winter sleep sack! My son looks comfy, warm, and has been sleeping peacefully through the night!
Logan K.
My baby sleeps like an angel in this sleep sack. It has been a great transition from the swaddle
Kristina N.
I love this, my baby was already a great sleeper, but I was looking for a safe way to keep her warm and the winter weight cotton is wonderful.
Alyson W.
We love the 2.5 tog sack! Gives her the perfect amount of warmth without over heating and without the use of the blanket! I purchased a second one to switch out when one needs to be washed. I wish they made them for adults cause the fabric is so soft and comfy!
Linda H.
This was bought as a gift, Therefore I do not have the info to share.
At the time I purchased it, I indicated it was a gift. I know they were happy to receive it, and tried it, however from what was shared, I do not believe it made a difference.
Kaleb A.
My daughter had just became 4 months old in late December and a week or so goes by to where she had started waking up constantly throughout the night. Every so often my wife would nurse her back to sleep depending on how long ago she was nursed prior. Other times, I’d have to rock her back to sleep. Even these methods would work occasionally they wouldn’t thanks to her sleep regression. Bought the winter Zen Sack, put her to bed and she’s finally getting back to her normal 8-10hr stretches of sleep. Highly recommend! Don’t buy off Amazon - could have knock off items compared to the original manufacturer.
Robin N.
LOVE THIS! MY BABY SLEEPS COMFORTABLY AND HAD A SOLID NIGHT SLEEP!
Sarah D.
Wonderful! My son had trouble sleeping through the night so we got him the Zen Winter Sleep Sack and he’s slept through the night ever since, the whole family appreciates it! Nested Bean for the win!
Lindsay B.
I LOVE the winter Zen Sack. Our house gets pretty cold in the evening and it helps keep our little one warm and snuggled up. I love how thick and soft it is. Very comfy for our little girl.
Zorangel N.
I bought it for my daughter. I tried a classic swaddle but she doesn't like it, good customer service by the way. then, I got this one. She slept better but a little more problem with acid reflux
Laura L.
This product is great quality! I love the new way this is weighted. My daughter seems to enjoy it better!
Daniel R.
It definitely makes a difference! She goes to sleep much quicker than without it and it it keeps her warm!
Dacota C.
Our little man falls asleep faster and stays asleep longer with the winter zen sack! He couldn’t sleep without it!
Bridgette R.
Our sweet girl was waking several times through the night. Took a chance on Nested Bean and we haven’t looked back. She is now sleeping through the night every night and taking naps during the day, all while in her Nested Bean sack.
Justin w.
I absolutely love our nested bean! Baby sleeps SOOOO GOOD now!
Andrea B.
Oh wow. For weeks I have been enduring my daughter waking up every 60-90 minutes during the 4 month sleep regression. Last night I put her in this sleep sack for the first time. And she actually slept. She slept 9 hours in a row. 9 hours. In. A. Row. This sleepsack is life changing.
Donna A.
My son sleeps so well in this sack. We are so grateful!
Emily R.
I like the design and seems well-made, but unfortunately my daughter does not like it at all for night sleep (had TERRIBLE night of sleep that improved when went back to other style sleep sack - tried twice to make sure wasn't coincidence, and happened again). Daycare isn't allowed to use weighted sacks for naps, so it is not going to get used at all. I wish I hadn't washed/labeled both sacks before trying the first one and realizing it wouldn't work. I would've returned the unused one.
Monica R.
The winter sleep sack is truly like a sleeping bag. I was expecting more of a micro-fleece material. The material is nice but not what i expected. These sleep sacks are difficult for me to get on my incredibly active son. I don’t feel like the weighted option has made much of a difference in his sleeping habits either, unfortunately. I’m not sure I would spend as much money again, I would likely opt for a less pricey brand. I wish these would have worked for us. I would have bought stock if they improved our sleep!
Michelle S.
Now that it’s winter I noticed my son was chilly at night. Now since putting him in this he does wiggle around as much in the night. This weighted blanket is such a game changer, we love it!!
Becca S.
Our little guy loves his sleepsack. The Winter version is so nice because it keeps him warm. He sleeps for so much longer when he naps in this
Kayla H.
We have used the sleep sack for our first but now with our second, she is a stomach sleeper and this option was perfect. It is soft and seems very comfortable.
Florence A.
Nicely made. Thick, soft and cozy. My baby loves her sleep sack.
JORDAN S.
We started using the Zen Sack when we transitioned our two-month-old out of her swaddle and she has been sleeping in it every sense! The winter one keeps her nice and warm and she has been sleeping 6-8 hours stretches while it's on.
Ashley L.
I love how soft and plush this sleep sack is. My son also loves his new sleep sack. Definitely helps keep him warmer as well.
Melissa C.
We purchased the winter cotton a month ago and loved it so much purchased a second! It should be all season cotton because our little guy will use this all seasons! It is so comfy and soft I wish I had one for myself. Worth every penny!
Arianna L.
So far my baby is sleeping an extra two hours at night. I’ll take it!
Michelle P.
I accidentally bought purple thinking I had ordered gray. Their customer service was outstanding and sent me an exchange that day! It was my first time purchasing the thicker/winter sleep sac. Needless to say our transition from swaddle to arms out has been so easy! We love nested bean products! HIGHLY recommend to anyone with littles
Krista H.
Very nice material and nicely made! Live in southern Indiana where it’s usually colder here( cold weather coming) but afraid my 3 month old is too hot natured for it. Debated for a while on the winter or the cotton version…. The winter is definitely nice and cozy ❤️
Garland D.
We introduced the Zen Sack to our three month old and he started sleeping through the night immediately! He falls sleep quicker and gets more restful sleep. Will definitely be ordering more and recommending. 10/10!
Amanda L.
My babe didn’t like swaddles from pretty early on so we switched to the regular nested bean around 2 months. Now she’s 7 months and it’s winter and pretty cold. She loves the winter bean! It’s cozy like a comforter and she can still move around and kick her legs in it. We bought 2. These are our favorite sleep sacks by far.
Sara F.
Wonderful
Getsy C.
I've ordered from Nested Bean ever since I came across their ads. I have almost every item from their store but my favourites are the Zen sacks! This particular Winter Zen sack has a very soothing colour and keeps my son warm especially at night! I'm glad I got another colour too. Keep up the great word, Nested Bean :)
From a very satisfied mom of 1 :)
Makala J.
My son’s room always gets a bit colder than the rest of the house, and this blanket is the perfect weight. I rest a bit easier knowing he’s cozy and warm. He also sleeps really well in his nested bean sack. When I transitioned him out of the swaddle into this we only had about one night of fussing before he got used to it. Now, he loves having his arms free so he can stretch them out in all directions!
Linda T.
We bought this to help with the 4 month sleep regression our daughter is having. It hasn't helped at all so far but we are hopefully that once we get past this phase she will be able to sleep longer at night. Overall its a great product for what it is. we bought the winter version and keeps baby warm and toasty when its cold.
April U.
At first we were unsure if it was actually working but it was cold and I was glad baby had a safe way to keep warm anyway. Fast forward a couple weeks and it was laundry night and baby didn’t have a clean sleep sack to sleep in. We put her down without any sack and she woke up every 30-45 minutes. We finally realized it was likely due to her missing her sack! Once dry we put it on her during one of her wakings and she was out for the night!
Kathryn B.
We have used nested since my daughter was a newborn!! She loves it and sleeps like a champ! She is almost 2 and we still use it! I love the comforter one for winter!!!
Yvette S.
Great comfy fabric. Worth the money.
Rosie S.
My 5 week old baby is a Goliath and as much as I like the sleep sack, I mistakenly bought the 0-6 month zen sack assuming it would be appropriate. It will fit him for a pretty short period of time considering how the arm holes currently fit. He did sleep better the first night, had a rough night the second night and is doing pretty well thereafter. I may purchase more in the next size. Please advertise to check weights and length of infant as I assumed up to 6 months would fit a 5 week old longer than this will.
Stephanie P.
Fits great. Warm but not to heavy. The weighted tummy helps. My son is sleeping better and warm now that it’s winter
Kayla M.
Love this sleep sack for colder nights
Grace N.
Love the winter weight!
Chaya D.
Love the material and my daughter is sleeping beautifully since we got it.
Zoe M.
I’m in love with this new winter version! It helps keep my baby nice and warm & she sleeps a much longer stretch now!
Jessica H.
My daughter has been using the 0.5 TOG Zen Sleep Sack since she was 4 months old and we’ve loved it. Now that we’re in Winter (Coastal California) we realized the 0.5 was not cutting it at night. When this Winter one came it was so thick I was worried it would get her too hot at night. To my surprise it keeps her nice and warm, but not over heated. She’s been sleeping harder and falling asleep easier. Would definitely buy again!
Nicole M.
My 12 weeknight of loves the winter sleep sack! Whenever we put it on she starts going sleepy and knows it’s time for bed! She’s been sleeping 6-7 hour stretches with it!
Kelly V.
Our little guy seems so cozy in this!
Tiffany C.
This is perfect for winter. My baby transitioned to the crib and his room gets a little chilly at night. I can rest well knowing that this sleep blanket will not only keep him warm but give him comfort due to the weighted chest. He has been safely using it to sleep for a month. I'm not sure how he would sleep without it but I'm not willing to try it out. It has survived several washes already and the quality is great. I'd buy another one in a heartbeat.
Brittany B.
I had high hopes for this sleep sack, and was hoping it would solve all our sleep problems but, alas, it has not. It’s well made and warm (our bedroom where our son sleeps is a little chilly, so I do love this sleep sack for that reason), but I don’t think the weighted aspect does anything to make him sleep sooner or longer. He still cries every time we put him in it (like he did the others) so, at least in our experience, the beads don’t magically make him calm down or anything. He also isn’t sleeping longer or shorter in it — just about the same as the other sleep sacks. Like I said, it’s well made and warm but if you’re looking for a magic elixir, this isn’t it… at least it wasn’t for us.
Patricia P.
We love it
Frequently asked questions
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How much weight is in the Zen Sack™?
The Zen Sack features a self-contained Cuddle Pad™, which weighs just 30 grams (Small size) 60 grams (Medium size) and 90 grams (Large size and distributed across the chest). Our products adhere to American Academy of Pediatrics (AAP) physiotherapy standards and Guidelines for Safe Sleep, which recommends a weight-to-body ratio of 1:10. Our product is safely weighted in key areas as opposed to all-weighted sleepwear or weighted blankets, which the AAP has deemed unsafe for infants.
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What’s the difference between Classic, Premier, and Winter Zen Sack™ products?
The only difference between these Zen Sack products is the fabric used for construction. Classic Cotton is made from 100% breathable cotton. The Premier Bamboo is made from 70% rayon from bamboo for luxurious softness and 30% cotton for strength. Light-weight fabric, perfect for warmer climates. Bamboo is naturally anti-microbial and moisture wicking for dry, clean comfort. The Winter Cotton is made from 100% cotton and heavy poly-fiber filling. Our warmest option is perfect for cooler rooms or colder weather.
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Is the Zen Sack safe for babies who roll over?
The Zen Sack was designed for rollers and tummy sleepers. It helps babies get longer, more peaceful sleep through all growth stages. The Cuddle Pad™ on the front of the Zen Sack 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 gently weighted center on baby's back for continuous comfort through the night.
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.