Search  for anything...
SwaddleDesigns

SwaddleDesigns Transitional Swaddle Sack with Arms Up Half-Length Sleeves and Mitten Cuffs, Small, 0-3 Months, 6-14 lbs, Heathered Jadeite (Arms Up Swaddle, Transition Swaddle Sleep Sack)

  • Based on 7,780 reviews
Condition: New
Checking for the best price...
$21.99 Why this price?
Save $2.00 was $23.99

Buy Now, Pay Later

As low as $5 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Aug 25
Order within 21 hours and 12 minutes
Available payment plans shown during checkout

Recently Viewed

Color: Heathered Jadeite


Size: Small (6-14 Pound)


Features

  • TRANSITIONAL SWADDLE SACK promotes BETTER SLEEP and SAFER SLEEP. Perfect for babies who like to sleep with ARMS UP, babies starting to or able to ROLL OVER, babies who like to suck on hands to SELF-SOOTHE, and for babies who get out of a classic swaddle
  • LITTLE SLEEVES with BIG PURPOSE. Unique ARMS UP 1/2-LENGTH Sleeves with mitten cuffs closed provide gentle suppression of Moro/Startle Reflex, so BABY SLEEPS BETTER. If baby rolls over, sleeves allow baby to use arms and reposition, so BABY SLEEPS SAFER
  • Recognized by IHDI as HIP HEALTHY. Safest & Easiest Way to transition baby from a full arm-restraining swaddle. TSS is not a tight swaddle nor a loose sleeveless wearable blanket. TSS supports baby in natural and flexed position to help baby feel secure.
  • DESIGNED BY A NURSE with Baby's Best Interest in Mind. 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
  • 100% Cotton. TOG 0.7 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

Description

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.

Product Dimensions: ‎26 x 14 x 0.25 inches


Item model number: ‎SD-705HJD-S


Target gender: ‎Unisex


Material Type: ‎Premium Cotton Knit


Material Composition: ‎100% Cotton


Care instructions: ‎Machine Wash, Tumble Dry


Additional product features: ‎Patented Design, Arms Up Half-Length Sleeves, 2-pull Zipper, Mitten Cuffs


Number Of Items: ‎1


Style: ‎Modern


Batteries required: ‎No


Item Weight: ‎3.36 ounces


Country/Region of origin: ‎China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Aug 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great for big & tall babies!
Color: Heathered Denim Size: Medium (14-21 Pound)
Perfect transition from swaddle to a sleeping sack! My baby is tall and big at 3 months, so we had to make the transition a bit earlier than 3 months because he didn’t fit into swaddles anymore. The first two nights were a bit challenging due to Moro reflex, he was waking up every few hours, but then got used to it, and sleeps really well! The material is thick, which is probably great for the winter, but we live in Texas, so I wish it was a bit lighter. Overall, really well! I’ll probably another one in a different color. ... show more
Reviewed in the United States on June 23, 2025 by thebookofglow
    • Great all around!
Color: Heathered Jadeite Size: Small (6-14 Pound)
Review Image by Erika Lee Erika Lee
Review Image by Erika Lee Erika Lee
I love this sleep sack! The arms are long enough so my baby can still have some movement, but also settles any startle reflex. The small fits her at 10-11lbs with room to grow still. I like the option to allow her hand to be out as well. The quality seems to be great and not too thick or thin. It has been washed many times and I am ordering another one right now! ... show more
Reviewed in the United States on July 4, 2025 by Erika Lee Erika Lee
    • BEST transitional swaddle
Color: Heathered Butterum Size: Medium (14-21 Pound)
My FAVORITE transition swaddle! This was so soft and easy to use. It washed super good, we only use cold to wash! It kept her nice and warm but not too hot, it felt snug on her so it kinda had the swaddle feeling. We used this until we could switch to a sleep sack and it was so nice to have! I would buy again! ... show more
Reviewed in the United States on July 3, 2025 by siera
    • Really does work, recommended
Color: Blue Tiny Triangles Size: Small (6-14 Pound)
Bought this after our pediatrician recommended a “starfish-style sleep sack.” Our little one doesn’t like to have his arms tied when swaddled even though he jerks himself awake with his startle reflex. This nifty thing works well. He seems a lot more content, and it truly does seem to limit the startle reflex. Happy with the purchase. ... show more
Reviewed in the United States on July 6, 2025 by kemckins
    • Nice, but the arms are a rough sell
Color: Heathered Oatmeal Size: Medium (14-21 Pound)
Love these sleep sacks. There are so few with long sleeves, which is great for us as we keep our AC blasting. our baby has always loved having his arms up, and he’s 4 months now, so they’ve been great for that. However, now that he’s rolling over and being crazy with his arms, I wish the arms weren’t permanently fixed upwards. We do still love these sacks, but I wish they had more options that didn’t just have the arms up. He looks so silly trying to put his arms down and the fabric won’t really let him. Otherwise, the quality is great, super comfortable for him, keeps him warm and cozy. ... show more
Reviewed in the United States on June 24, 2025 by Alexis B
    • High quality for low price
Color: Tiny Hedgehogs Size: Medium (14-21 Pound)
Highly recommend this transitional sleep sack. out of all of the brands we have tried this has helped with sleep, its breathable but baby doesnt get cold its a nice snug fit but not overly snug and the price isnt bad comparedto other sleep sacks!
Reviewed in the United States on July 8, 2025 by Shoei Stratmann
    • This is amazing! Sleep sack is great for babies that HATE being swaddled.
Color: Heavenly Floral Size: Large (21-24 Pound)
Review Image by HannahDrew HannahDrew
So, when you first open this sleep sack you’re gonna go, holy moly!!! This thing is long! Don’t freak out, your baby is gonna love it! Of course I washed it and dried it and it didn’t shrink. Put my baby in it and took this picture because she instantly started to rub her eyes and was so comfortable, she passed out in less than 5 minutes. She’s 4 months old and she HATES being swaddled but doesn’t sleep if I don’t swaddle her. I got a large because I wanted her to be able to grow into it. It’s great material. Keeps her cool and warm when she needs it. ... show more
Reviewed in the United States on June 6, 2025 by HannahDrew HannahDrew
    • Sleeps just like she’s in a swaddle, but safe for rolling!
Color: Heathered Butterum Size: Medium (14-21 Pound)
Review Image by Kindle Customer Kindle Customer
Update: changed from five stars to three stars because after a week or two one of the cuffs stopped… “working.” Her arm pokes through every time. Like the cuff just rolls away and she gets her arm through. I know that it is some sort of manufacturing issue because it happens every single time, very quickly, on one side, but doesn’t ever happen on the other side. This has been happening for months. It doesn’t matter how I adjust it, it still happens. I think I am going to try to sew it closed, if I can find time. The cuffs are kind of the whole point of this swaddle sleep sack, so if one doesn’t work, it is just kind of a waste of money. My daughter is 6 months old and is still very reliant on a swaddle to sleep. Without a swaddle, she wakes up as soon as I set her down. She also wakes up every time that she starts to rustle, without a swaddle. She can roll from back to stomach in the swaddle, so I have her swaddled just for naps and watch her like a hawk. At night, I don’t keep her swaddled and she sleeps very poorly. I end up bringing her in bed very early in the night. This thing helps her sleep just like a swaddle, and this amazes me! It is definitely safe for a rolling baby, because when she rolls over she can still get up on her elbows just fine. She stays asleep just fine when I set her down in this, and she is able to get back to sleep after rustling around in her sleep. She still isn’t sleeping through the night, but I definitely did not expect her to. She is a breastfed six month old, so it is very normal for her to wake to nurse at night. Note that it is winter and cold in our house, so she is in thick pajamas underneath this, which helps to keep her arms tight and cozy. In the summer, if she was wearing only this, I am not sure whether or not it would have the same effect. Regarding sizing, I found the sizing to be a little odd. I got her the medium, which says 3-6 months and 14-21 pounds. To me, 14-21 pounds seems more like a 6-9 month range. She is six months old and 18 pounds, which is very high in the percentiles. For clothing, she fits best in 6-9 or 9-12 months and doesn’t fit in a single of her 3-6 month clothes, but I still went with the medium 3-6 month size because she fit in the weight range. It fits just fine! It looks a little funny in the picture because she has a jacket on underneath. With the sizing, go with the weight range rather than age. It is also a bit stretchy so I think it will fit for a while. ... show more
Reviewed in the United States on December 14, 2024 by Kindle Customer Kindle Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...