We were ready to transition our 4 month old out of the swaddle because he started rolling. This helped so much! We were able to start him off with one arm out and one arm tucked in and he loved that! After one week of one arm out we brought both arms out. The weighted chest really helps keep the startle reflex at bay and we have a great sleeper!

I used Swaddle Up because of the arms, and I also used Sleep Pea Swadle because of the Houdini strap.... and this is like the best combination ever! Plus the weight of Nested Bean ! I highly recommend this product. My baby loves to such her hands through the mesh and soothes herself.

This was the BEST purchase I’ve made. This is my first child, I’ve never even baby sat a child before, so needless to say, the sleepless nights were a shock. I spent days looking up ways to make her sleep better, and this product popped up on my feed one day. I said why not, spent the 40 dollars, and it has done more than work. She’s now a month old, sleeps 4 hours stretches during the night, only waking to eat, then falling right back asleep. Two hour during the days naps. This product is truly a miracle, and worth the purchase!!

Great material! Great fit! Snuggles my baby without him wiggling free!

My daughter sleeps really good on this swaddle sack!

I used the love to dream swaddles because my little one likes her arms up, but loved the idea of a weighted swaddle. Unfortunately she just stopped being swaddled when the zen one came out so we are using the zen sleep sacks now(which she loves!), but this is literally the best idea ever. I’ll be buying the zen one by the truck load with my next baby!

I LOVE this sleep sack! My almost 3 month old was sleeping through the night but would stir a few times throughout his sleep and need to be soothed. Since wearing this, he sleeps almost 12 hours straight! My only complaint is that with his arms in the sack, it is too tight and we can’t zip it, so we had to take off the arms for him to fit, but he’s a very big baby, so it was almost expected. Other than that, I have zero complaints. If you’re contemplating purchasing this, DO IT!!

This is everything I would want in a swaddle! It is adaptable to all sorts of babies which is so important. Every little one has different levels of swaddle they need or enjoy. This sack can be used to transition from later newborn stage all the way up to un-swaddled sleeping. A key feature I like with this sack is that it has plenty if hip room while still snuggling baby's upper half; this is VERY important and you won't find this feature in some other zip up designs. I was incredibly impressed with the workmanship of this amazing little sack. Every detail is carefully executed, stitching is smooth and strong, mesh is amazingly fine and soft, the fabric has just the right elasticity (so soft!) and the zipper is carefully protected. It even released the infamous breast fed baby stains TWICE before I wrote this review. It looks good as new after a month of use. I would highly recommend buying this sack for all my patients and friends. It can work for any baby!

I love the zen one! My baby fights traditional swaddles. This is perfect, she loves that she can get her hands to her mouth but it keeps her snug so she can sleep restfully. I’m not brave enough to sacrifice a nap to testing if she’s ready for arms out (I feel like she is) but I’m so glad it transitions so she’ll have something familiar when we get there! I recommend this type of swaddle to anyone who has a baby that’s not feeling a normal swaddle but needs it to sleep

This product is perfect for transitioning from swaddle to sleep sack. It is nice and snug but also stretchy material. My son seems to like it. The design of this one has been helping him with the transition from bassinet to crib as I had been using the zen sack before I received the zen one and he seemed to struggle to get comfy. Not anymore. I love it!

The Zen One is a pediatric sleep consultants dream! If you are an expectant parent, this is the only swaddle you will need for those first important months of life. The convertible design allows you to safely and comfortably transition your newborn as they grow and develop. The full swaddle is perfect during the early weeks of the “fourth trimester”, offering a safe and comfortable way to reduce the effects of the moro (startle) reflex while regulating your baby’s temperature. As your baby matures and becomes more active, the arms up option is a great transitional position to help provide more freedom in movement while sleeping (especially for those hand-sucking, face rubbing, self-soothing babies). As per the recommendation of the American Academy of Pediatrics, once your baby starts showing signs of attempting to roll it is time to transition to an arms-out swaddle. Zen One’s easy zip-off arms provides the perfect arms out sleep sack (plus you can slowly transition one arm out at a time)! Combined with Zen One’s Cuddle Effect design, this swaddle is my infants favorite swaddle (mine too! We get the longest stretches of sleep!). And the two-way zipper is a nighttime necessity for this mom – quick and quiet diaper changes! If you are going to register for just one swaddle, make it the Zen One.

We love the new Zen One!!! I absolutely love the strap on the inside to keep it in place and the mesh arms so you can put little ones arms out!!! My son is a little on the bigger side so the size was a tad snug but otherwise it’s amazing!!! Would love to have another in a bigger size!!! Thank you so much!!!

I like the concept of the product my daughter is about 13 weeks now so I did not try the swaddle attachment. We did have to zip out her arms she was ready for the sleep sack type by the time we received the product. She sleeps well with the snug fit and I very much like the extra weight around the top similar to the swaddle version. Overall i will confine to use it as a sleep sack. If I have another child I would for sure order it for a newborn. My only suggestion is increasing the size of the leg room seems a bit snug and feel maybe the baby would grow out of it quicker. Thanks so much!

We have now tried the swaddle, the sack, and this one. This one would probably be our favorite and we will definitely purchase it in the future in sizes that better fit (I think our girl was a little too chunky for 0-3 months! haha). We LOVED that there was a velcro strap on the inside that holds them in, similar to a swaddle but less fabric than a swaddle and harder to come undone. Our little one loved the velcro too. I think it made her feel like she was being snuggled. As always, we love the gently weighted egg on the product also, and so did our little girl. Her sleeping pattern didn't change at all switching from the swaddle to the sack to this new product, so I know it worked the same. If we don't put one of these products on her, she generally goes to bed around 10 and wakes up at 3-4 a.m. With these products, including this one, she goes to bed around 10 and then wakes up at 7 a.m. when we're ready to start the day. It's a sweet blessing to sleep through the night! I highly recommend this product to anyone with a baby. It will probably be my go-to baby shower item to gift to other parents. It's not the same as Halo and other companies because of the way it's made and with the intentions behind it. I love that this product is like a swaddle and a sack combined - you can swaddle with the zippered arms if you want (we didn't because she couldn't fit in there and she isn't swaddled anymore) or you can take the arms off and act more like a sack but with that extra velcro strap on the inside. Overall, I probably would've bought this product over the sack if it had existed when I bought the sack and then I would've used the sack for when she's several months older. Best products ever!