SwaddleDesigns Transitional Swaddle Sack – Arms Up Half-Length Sleeves, 6-9 Months, Heathered Denim

Ease the transition from swaddle to wearable blanket

The Transitional Swaddle Sack is designed for babies who prefer to sleep with arms up, are beginning to roll, or tend to break out of a traditional swaddle. Its ½ length sleeves with foldover mitten cuffs provide a snug, secure feel while still allowing natural movement. The design is not a tight wrap; it supports a gentle, familiar sensation as your little one learns new sleep skills and transitions to a wearable blanket.

As bedtime routines evolve, this sack can help you maintain a comforting ritual. When cuffs are opened, babies can self soothe by bringing a hand to their mouth. When kept closed, the cuffs offer a soft barrier to protect tiny faces while still enabling arm movement for repositioning and air access if needed, even if a roll occurs during sleep.

• Arms up sleeves support self soothing and may contribute to a more settled sleep rhythm
• Partial suppression of Startle Reflex with half sleeves helps reduce sudden jerks and promotes calm settling
• Not a tight swaddle; a snug yet adaptable wearable option that grows with baby as they start to roll

Two practical design choices for real life use

• Foldover mitten cuffs can be opened or closed, supporting self soothing by hand or protecting delicate skin when closed
• 100 percent cotton fabric with a lightweight TOG 0.5 for breathable comfort across mild temperatures

Key features and how they help at a glance

• 2 way zipper with top and bottom pulls for easy entry and diaper changes without fully waking baby
• Weight based sizing S 6-14 lbs, M 14-21 lbs, L 21-24 lbs to help match the sack to your baby's current needs
• US patent 11 812 795 along with EU, UK, China, Japan, and Korea patents reflects thoughtful design

Care is simple: machine wash and tumble dry. The Transitional Swaddle Sack combines practical design with a thoughtful approach to early sleep habits, offering caregivers a flexible option during the everyday moments of growth and change. While every baby is different, you may notice a smoother transition as arms find a comfortable, near body position and the overall snug feel supports a sense of security without restricting movement.