







The Transitional Swaddle Sack is the easiest & safest way to transition baby from a traditional swaddle. The arms up sleeve design allows baby to self-soothe and the unique ½-length sleeves with foldover mitten cuffs closed provide partial suppression of the Startle Reflex to promote better sleep; and, if baby rolls over during sleep, the sleeves allow baby to use arms to lift torso and head to access air to promote safer sleep. The Transitional Swaddle Sack is ideal for babies who prefer to sleep with arms up, babies who are starting to rollover, and babies who break out of a traditional swaddle. The uniquely-shaped, ½-length sleeves are not full length, so when mitten cuffs are closed, baby’s arms will be flexed close to body for swaddle snugness. The foldover mitten cuffs may be worn open or closed. Caregiver can open one or both cuffs, so baby can self-soothe by sucking directly on hand. Helpful 2-way zipper with 2 zipper pulls. The zipper zips down from the top to make it easy to place baby in the sack and zips up from the bottom to make it easy to change baby’s diaper. Designed by a nurse. 100% Cotton. Soft, stretchy cotton knit. 0.7 TOG. Machine wash warm and tumble dry low. US patents 11,812,795 & D833,613 with patents in EU, UK, CA, CN, JP and other countries.
The TRANSITIONAL SWADDLE SACK allows baby to SELF-SOOTHE and promotes BETTER SLEEP and SAFER SLEEP; Perfect for babies who prefer to sleep with ARMS UP, babies who are starting to rollover, and babies able to break out of a traditional swaddle
LITTLE SLEEVES with BIG PURPOSE. Arms Up Swaddle with 1/2-length sleeves and mitten cuffs closed provide partial suppression of Startle Reflex to help baby SLEEP BETTER; if baby rolls onto tummy, baby can push up to access air for SAFER SLEEP
EASIEST way to move from a traditional swaddle to a wearable blanket. Transitional Swaddle Sack is not a tight swaddle nor a loose sack. Snug fitting and Hip Healthy design supports baby in natural position and flexed position to help baby feel secure
FOLDOVER MITTEN CUFFS MAY BE WORN OPEN OR CLOSED; Caregiver can open one or both cuffs, so baby can SELF-SOOTHE, or close the cuffs to PROTECT BABY FROM FACIAL SCRATCHES and provide partial suppression of startle reflex.
100% Cotton. TOG 0.5 Soft stretchy fabric. 2-way double-pull zipper for EASY DIAPER CHANGES. Use baby’s weight to select size: S 6-14 lbs 0-3 mo; M 14-21 lbs 3-6 mo; L 21-24 lbs 6-9 mo. Machine wash. Tumble dry. US Patent 11,812,795 WW patents online
12 reviews for SwaddleDesigns Transitional Swaddle Sack, Arms Up Half-Length Sleeves & Mitten Cuffs, Swaddle for Newborn Transition to Baby Sleep Sack Wearable Blanket, 3-6 mo, 14-21 lb, Watercolor Mountains & Trees
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$19.99

Eric Contreras –
So good, I ordered another one!
The Transitional Swaddle Sack has been a game changer for our baby’s sleep routine. The material has the perfect amount of stretchiness, giving our little one enough movement while still providing that snug, comforting feel. Since using it, our infant has been sleeping almost through the entire night, and the improvement in sleep quality has been amazing.The zipper quality is excellent,smooth, durable, and makes nighttime diaper changes quick and hassle-free. It’s incredibly easy to use, even when you’re half-asleep during late-night changes. The fabric is breathable, keeping our baby comfortable without overheating, and soft enough to feel gentle on their skin.Overall, this swaddle sack offers the perfect mix of comfort, flexibility, and convenience. Highly recommended for any parent looking to transition their baby safely and comfortably!
jessmin richani –
Perfect Transition Swaddle — Baby Sleeps So Well
I absolutely love this swaddle, and my baby does too! The material is soft, stretchy, and really comfortable no bad smell. We switched to this swaddle when my baby started rolling, and it has been a great transition.I really like the sleeve options — you can keep them closed for babies who still need that snug feeling, or open them once they’re ready. It’s nice knowing we’ll be able to use it for a long time.The double zipper is a lifesaver during nighttime diaper changes. You can unzip from the bottom without taking the whole swaddle off, which makes things so much easier.The color is beautiful, and there are lots of choices.Overall, it’s well-made, easy to use, and helps my baby sleep better. Highly recommend and I will buy more!
T –
It actually worked
I’m not one to write reviews, never have actually so this is my first one but after a couples months of use I just had to leave my thoughts for those on the fence. My baby was very heavily reliant on swaddling to be able to sleep and had a really aggressive startle reflex so when trying to take it away it was a total nightmare. I decided to give this one a try after failing over and over to get him to sleep without a swaddle. I’m so glad I did cause he loves this transitional swaddle! Been about 3 months of using it and I’ve gotten him back in his own sleep space and taking naps independently again and having longer stretches of sleep (on days/nights I don’t use it cause it’s dirty he doesn’t sleep as long and wakes himself up all night). It’s contoured enough to feel “snug” but still has plenty of leg room and can still put his arms down but helps lessen the arm flailing a lot. Love the double zipper feature and it’s very soft and just thick enough to keep him warm but not overheat. I highly recommend this product for the parents out there struggling to transition out of a traditional swaddle. I got the green one for reference, I read other reviews that said different colors seem to have different fabric and construction and the green one seemed to have the best construction so I went with that one and am definitely gonna get a few more now that I know my baby likes it. Hope this helps
Amber Nentwig –
Best sleep sack
Love these sleepers so much I went back for more. I love that we can free up a hand so my baby can self soothe. The material is thick and soft, easy to clean. The zippers are well made. I will say the ‘“mittens” to close off the arms do tend to stretch easy, so whether or not I leave my baby’s hand out, he always wakes up with both arms out anyways lol. I like the fit, it’s nice and snug, giving my baby comfort while he sleeps but also long enough to ensure there’s plenty of leg room. 10/10 will continue to use and buy
Kat Joy Rex –
Great all around, except for arm length
Love this sleep sack, I ordered a bit larger than needed so he’d be able to grow into it, and that’s worked out really well. Length is good on the body, but the arms are way too short. They come to his elbow, no way I could tuck his hands in if needed. For reference I bought the 9mo size when my baby was about 6mo, just at the minimum weight for that size, and he’s growing into it well. Sleeves have been too short the whole time though, so keep that in mind. Material is a good weight, not too thin not too heavy. He sleeps very happily in it. The double zipper makes nighttime diaper changes a breeze, no waking him up to pull his legs out of footie jammies, thank goodness. The short arms aren’t a deal killer, just a bit annoying.
LC –
Great transitional sleep sack
Game changer! I needed to find something to replace the traditional swaddle since my 3 month old started rolling. I was so concerned it would interrupt his sleep because he started sleeping through the night.It took a couple nights for him to get used to this transitional swaddle but once he did he loves it and sleeps through the night again.At 4 months I tried to get him to sleep on his own for naps, it was a struggle at first but once he associated this sleep sack with sleep he would self soothe and fall asleep in this.The arms for a perfect tension for the startle reflex. He’s 5 months now and doesn’t really have startle reflex but he loves his sleep sack so I’ll keep him in it for a while. Also he runs really hot so the 0.5 Tog is perfect
Lexi –
Absolutely love this swaddle and highly recommend!
My newborn could break out of any swaddle (even the Velcro wrap ones) and loved to have his hands up by his face. As a new mom, I was so anxious about this causing extra loose fabric that could end up over his mouth and nose. I tried a different zip-up arms up swaddle but it didn’t really fit well and it was pretty restrictive and he hated it and would just fight it constantly. Then I found this swaddle and it has been absolutely perfect!! My baby doesn’t fight it and he sleeps well in it. It fits him well, is super easy to put on/take off. I love that the arms can be mittens or open sleeves. The sleeves are perfect where he can sleep with his arms up and there is enough limiting of the Moro reflex, but he can still move and use his arms/hands a little bit. He sleeps well in it and I feel that he is safe and comfortable, so we are both happy!! This swaddle is easy to wash (machine washable and okay to go in the dryer). I like the fabric- it feels soft and sturdy and so far these are holding up great. And the price is very reasonable, in my opinion.
Ayesha Javed –
Honestly such a game changer, my 3 month old was never comfortable when sleeping during the night so I bought this to try and see if it helps. It definitely helped him sleep so much better, he sleeps longer intervals. The only thing which I’m not sure about is how the zipper sticks out a wee but which isn’t a cause for concern but I have noticed that it’s left a mark on his skin.
Océane –
Adepte des produits similaires de grande marque, j’ai voulu tester moins cher, affectivement ça fait le boulot en revanche on voit que la qualité n’est pas forcément au rendez-vous, le tissus en coton est bien en revanche la fermeture de qualité moyenne est très épaisse, elle fait des gros bourrelet, et remonte dans le cou de mon bébé je ne suis pas fan de cette gigoteuse, elle est très rigide, j’imagine que c’est normal pour le prix mais sur les autres marques on a des fermetures plus souple donc pas gênante pour l’enfant.Si je dois en racheter une malheureusement je repartirais sur des grandes marques
GABRIELA RAMGAL –
La tela es muy delgada, le quedó muy bien a mi bebé de 22 días de nacida que pesa 3.200 kg
AlejandraEmm –
Me encanta para ahora que mi bebé tiene 3 meses y está en transición para dormir con sus manitas sueltas. Me encanta.Además que es facil cambiar el pañal en la noche sin tener que quitarle todoMuy buena calidad. Fresco y suavecitoLi recomiendo mucho
glez2jorge –
Es demasiado pequeño para el tamaño anunciado… wolo lo use un parvde veces y ya creciò mi bebe. Entonces para el uso que obtuve es muy caro.