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Swaddle Blanket Sleep Sack with Arms Up Design 2 Packs, Hands Up Sleeping Sack 3-Way Transitions to Arms-Free Wearable Sleeping Bag for Newborn Baby Boys Girls Snug Fit Calms Startle Reflex

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$37.99

$ 16 .99 $16.99

In Stock

1.Color:Apple + Bee Butterfly


2.:S ( 0-3 Months, 5-14 Lbs )


  • 95% Cotton, 5% Elastane
  • Imported
  • Sleep as Babies’ Like - Over 90% of babies sleep with their ARMS UP around their head when placed on their back to sleep. This is simply a newborn baby’s natural and preferred way to sleep. Knirose swaddle with scientific Arms Up design allows baby to sleep with their arms in their preferred ARMS UP position and gives enough movement, all while calming down the Moro (startle) reflex.
  • Enjoy Sleep - We know that you will feel very tired, because you hardly have a good night's sleep, because the newborn baby is easily awakened, or crying at night, or needs to be hugged to sleep, etc. This snug fit swaddle creates a familiar safe and secure feeling just like in mommy's womb, and it also mimics your baby feels when held by you. This ensure your baby is comfortable throughout their sleep cycles in the night and enjoy sleep.
  • No Disturb by Diaper Changes - Are you worried that the change the diaper will wake the baby up? Knirose swaddle sleep sack as an awesome dual 2 way zipper from side to the bottom makes it is an easy job for middle of the night diaper changes and hardly disturb your little sweetie. The zippers are well kept hidden for babies not to get a rush or something.
  • Multipurpose Design - This swaddle grows with your newborn and infant until next stage. Plus, allows your baby to sleep with arms in/out/free position. The ability to swaddle with arms out or in makes it perfect for transitioning when the time comes. And it allows babies to move arms and if the babies are to roll onto their stomach they would be able to use their arms to lift their head off of the crib mattress if needed. And it has lots of room for kicking legs.
  • Premium Materials - We always know the concerns of being a parent that you hope fabric is soft and comfy. The snug fit from our 4-way stretch fabric of 95% Cotton and 5% Elastane and has a TOG rating of 1.0 which makes it perfect for year-round comfort. The fabric is elastic like mother's womb, so familiar. These swaddles are baby registry must haves for new parents.



Product Description

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1, Legs In

Knirose swaddle sack is quick and easy to use. Just simply put your baby inside the swaddle and zip it up. No classes are needed to learn wrapping techniques, no practice is required to master them.

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2, Hands In

Knirose wing design allows baby to access to touch just like they did in the womb. Unlike other swaddles that restrict babies' arms and hands down to the sides or across their chest, which many babies will not tolerate.

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3, Zip Up. Done

Anyone who can operate a zipper can correctly put a Knirose sleeping bag on your baby, every time...even the first time. Knirose will not come loose or unravel during the night, eliminating the risk of your baby 'breaking out' of a swaddle.

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4, Fast & Easy Diaper Changes

The Knirose 2-way zipper is designed at the side instead of in the middle, which offers more rooms and gives you easy access for nighttime diaper changes without having to fully unwrap and wake your baby, so you can both get back to sleep more quickly.

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Ideal Time

The first 3 months is the ideal time to help your baby learn to settle to sleep without your help. When your baby learns to 'Self-Soothe' you can look forward to six to eight hours of uninterrupted sleep at night.

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Sweet Sleep

Touching their faces and sucking on their hands just like they did in the womb. This reflex is present in all infants from birth and has a known calming effect.

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Baby’s Natural Sleep Position

Baby’s natural sleep position is with arms up. Just having her hands near her mouth helps your baby settle and sleep better. Knirose is the swaddle that lets your baby sleep safely on her back in her preferred natural position, with her arms up in the wings.

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Contains Startle Reflex

Swaddling calms the natural startle reflex and enjoy sleep. Knirose contains your baby’s startle reflex by making baby feel snug and secure, while the wings allow her to access her hands.


Krystal bernal
2025-09-02 13:16:30
zero complaints. my baby loves sleeping with her arms up after her first month. the double zipper helps for quick diaper changes and has a cover at the neck so it doesn't bother baby. the sleeve openings are great for giving baby freedom when she wakes but I know she will go back to sleep soon. material is soft, it's thin but not flimsy, warm enough to add a little layer so she's not cold and has a good amount of stretch. she doesn't wake herself up, doesn't break out like a blanket swaddle, and doesn't cry from feeling the restraint of an arms down swaddle. the patterns are cute, easy to get her in and out. if you need something really warm maybe consider something thicker, more layers underneath or temperature controlling the room instead.
Jenna Dawn Hoffert
2025-08-31 17:12:35
The search is done finally. I’m about to order four more of these and when I tell you I have tried every brand and have been disappointing it over and over again. OK main complaint usually is the neck is too small and they’re different sizes like you can actually get two different ones in a double pack, I had that happened to me these fit my chunky 24 pound grandson who is 10 1/2 months old the Large gives him plenty of room in the leg area and it is tighter around the waist with plenty of stretch. You don’t have to worry about anything. I am so extremely happy no more having to put him in it and then he knows it’s time for bed because he can’t play around at it until he’s ready to go to bed well, this one you can do with just that you can actually just unzip the bottom and slide it over put his arms out and what we do is we tuck the back in the diaper so his little legs can just run around and play and he doesn’t trip and fall like the other ones when he’s trying to roll walk around because his feet are stuck outside . So he can actually wear it for a good three or four hours before he’s even ready to go to bed. As long as you obviously know your child’s poop schedule lol I’m telling you the sleeves are like T-shirt, which is very awesome and unique and then when you want to put his arms back in plenty of room and straight up above his head like he always loves him and mine telling you my grandson has a thick neck and that’s been one of our biggest problems. I’ve actually gotten to the point where I was going to buy a sewing machine and just start making them myself because this is something , the market has a place for a really good swaddle transitional one and it’s not been tapped. So I may just be tapping in that market here lol I got some great ideas from reading all the reviews and all the things that we’ve gone through I can tell you the large , you will be extremely impressed. No trying to get over on you they actually I think under estimate how long you can probably fit them in there I would say my grandson‘s gonna be good inside that until he’s about 18 months old very easy to change the diaper in the middle of the night , I just can’t say enough about this. I bought the camouflage blue pack and I’m on here tonight purchasing two of the other ones packs. Great Christmas presents but I can tell you guys right now I am not lying to you and I don’t get paid for any of this and you can read lotta reviews. I have left on all the other places that I bought on , I sent back stuff I don’t play around now when it comes to my grandchild‘s happiness and comfort ability. Rest assured you have found the right one. I only wish they made an extra large, but will get to that in the next stage until then, these will do , I wish I could give 10 stars another thing I do wish they made it in fleece which I’m not for sure maybe they do but I have a nail to find a thing the cotton is so soft so I’m not gonna complain plus my grandson gets really hot sleeping so it’s not really a good big complaint for me
Taylor Lanae
2025-06-01 10:23:01
This sleep sack swaddle is amazing! It keeps my baby snug and secure, helping them sleep more soundly through the night. The fabric is soft, breathable, and gentle on their skin, while the design makes it easy to get baby in and out without any fuss. It's a must-have for a peaceful night's sleep!
Savannah Alfred
2025-04-14 11:31:07
Love that it has a two way zipper so I can do easy diaper changes in the middle of the night if needed. Also has slots with the fabric folded over each other so I can get her hands out if needed! It is a little long on her because we're in between the S & M sizes but it fits her well regardless, she just has extra leg room.Nice soft material, feels thin and breathable without being too thin. Definitely what she needed as she was outgrowing the traditional Velcro swaddles, perfect transitional swaddle for the next stage!
Lelo beyene1
2025-04-06 16:14:29
It is nice that the hand can be taken out and in very easily! Diper change is very easy! It is a bit expensive but it is made with quality and my baby is a bit tall and could fit large when he is 5 month! I really loved it I ordered 2nd batch
Nadine
2025-02-27 14:10:15
I really love those sleep sack, it really helped my baby in the transition phase from traditional swaddle to hand free sleep. Amazing soft quality, affordable and have space for moving legs.
Jessica
2025-02-19 21:41:13
I really wanted to love this and couldn’t wait to use it but even though i went by the size chart it was to small. My little one is on the smaller size and it didn’t fit. She is just now getting to 8lbs and 20in. The quality seemed nice, the material was soft and a nice weight, but when put my little one in it, she couldn’t even lay her hands/arms out like pictured, and when she put her arms together the collar pulled on the back of her neck. Seemed easy to use, but never got a chance to write about sleep quality.Not to sure about this one.
Rita Bardales
2025-02-04 15:28:50
It definitely helps a lot for my baby to sleep peacefully, just a small suggestion, my baby is 6 weeks old and the bag I bought is from 0 to 3 months but it fits him just right and in my opinion the 3 to 6 months was better so it would be less tight on him, I bought other sleeping bags different from these and I got 3 to 6 months and if I recommend a larger size or it depends on whether the baby is smaller in height, it depends on that, my baby is long despite being 6 weeks old.
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