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SwaddleDesigns Transitional Swaddle Sack, Baby Swaddles for Newborn with Arms Up Half-Length Sleeves & Mitten Cuffs, Sleep Sack Wearable Blanket, L (9.5-10.8 kg), 6-9 months, Heathered Gold

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About this item
  • BETTER SLEEP, SAFER TRANSITION: The ideal swaddle blanket for newborns who prefer arms up, babies starting to roll over, and those who self-soothe. Offers gentle support as baby moves from classic swaddles to a wearable sleep sack, improving sleep quality and safety.
  • LITTLE SLEEVES WITH A BIG PURPOSE: Patented half-length arms-up sleeves gently suppress the Moro/Startle reflex while allowing babies to move and reposition if they roll. Supports better, safer sleep and gives babies the freedom to soothe naturally.
  • RECOGNISED AS HIP-HEALTHY: Approved by the International Hip Dysplasia Institute. Not tight like a classic swaddle, not loose like a sleeveless sack, this baby swaddle sack supports a natural, flexed position for optimal comfort and safety.
  • DESIGNED BY A NURSE: Foldover mitten cuffs can be worn open for self-soothing or closed to prevent facial scratches. Created by a nurse with baby’s development and comfort in mind. Ideal for use as a swaddle blanket 0–3 months, 3-6 months and 6-9 months.
  • SOFT COTTON & EASY NAPPY CHANGES: Made from breathable 100% cotton (TOG 0.5) for year-round comfort. Features a 2-way zip for quick nappy changes. Choose size based on baby’s weight. Machine washable and tumble dry safe. GB Patent 82023790001000, EU DM/202379, US 11,812,795 & D833,620
Product description

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 details
Brand
SwaddleDesigns
Manufacturer
SwaddleDesigns
Material
Premium Cotton Knit
Colour
Heathered Gold
Size
Large (9.5-10.8 kg)
Weight
0.20 kg
Part number
SD-705HGL-L
EAN
0850053806070

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 12 of 10 reviews

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SwaddleDesigns Transitional Swaddle Sack, Baby Swaddles for Newborn with Arms Up Half-Length Sleeves & Mitten Cuffs, Sleep Sack Wearable Blanket, L (9.5-10.8 kg), 6-9 months, Heathered Gold | Bigamart