SwaddleDesigns Transitional Swaddle Sack – Arms Up Half-Length Sleeves, 6-9 Months, Heathered Teal (21-24 lb)

Ease the transition from swaddle to wearable blanket

The SwaddleDesigns Transitional Swaddle Sack is crafted to help families move gently from a traditional swaddle to a wearable blanket. Its arms-up design invites natural self-soothing while the ½-length sleeves with foldover mitten cuffs offer flexible control—cuffs can be kept closed for a snug feel or opened to allow hand access for soothing. When babies roll or shift, the partial sleeves support arm positioning that can help them lift their torso and head to access air, all while the fabric remains breathable and soft. Made from 100% cotton with a soft, stretchy knit, this sack carries a light 0.5 TOG for comfortable wear in assorted sleep environments. Designed by a nurse and protected by patents (US 11,812,795; D833,613 with international counterparts), it blends practical engineering with everyday usability.

Imagine nighttime moments when your baby prefers arms-up positioning, is beginning to roll, or tends to break out of a traditional swaddle. The Transitional Swaddle Sack answers these needs without forcing a rigid swaddle routine. The half-length sleeves are not full-length, so when cuffs are closed, little arms stay close to the body for snugness, yet the baby can still flex and respond to their surroundings. For added versatility, the foldover mitten cuffs can be worn open or closed, enabling self-soothing by hand or protection from facial scratches as needed.

Key benefits and real-life uses

• Arms-up design supports baby comfort and self-soothing tendencies.
• ½-length sleeves with foldover cuffs provide adjustable arm control and protection.
• 2-way zipper allows easy diaper changes from top or bottom without disrupting sleep.
• Hip-healthy fit helps maintain a natural leg position during sleep.
• 100% cotton fabric offers breathable softness with a lightweight 0.5 TOG for warmer nights.

Ideal scenarios include babies who prefer to sleep with arms up, those who are starting to roll, or little ones who escape traditional swaddles. The design supports a secure feel while leaving room for safe movement, making it a popular transitional option for many families.

What to know at a glance

• Care: machine wash warm, tumble dry low.
• Size by weight: S (6-14 lbs), M (14-21 lbs), L (21-24 lbs).
• Zipper: 2-way double-pull for convenient diaper changes.
• Fabric: 100% cotton—soft, stretchy, and comfortable for nightly wear.
• Design notes: arms-up, half-length sleeves, foldover cuffs (open or closed) for flexibility.

With a nod to practicality and safety, this wearable blanket aims to accompany you through a key stage of early sleep. It’s a thoughtful option for a calm, comforting night routine, without promising guaranteed results—because each baby’s sleep journey is unique.