SwaddleDesigns Transitional Swaddle Sack – Arms Up Sleeves, 0-3 Months, Heathered Gold

Meet the Transitional Swaddle Sack

The Transitional Swaddle Sack from SwaddleDesigns makes it easier to move your baby from a traditional swaddle to a wearable blanket. Sized for 0-3 months and 6-14 lb, this heathered gold sack uses 100% cotton knit that is soft, breathable, and stretchy enough to adapt as baby sleep rhythms evolve.

Sleep and safety features that parents notice

Arms-up ½-length sleeves with foldover mitten cuffs provide gentle restriction where it matters most, helping baby settle into sleep while keeping hands close to the body. If baby rolls, the arms remain free to help reposition and breathe more easily as needed.

• 2-way zipper design opens from top for easy placement and from bottom for quick diaper changes.
• Foldover mitten cuffs can be worn open or closed, enabling self-soothing with blocked or accessible hands as you prefer.
• Designed by a nurse and recognized by hip-health organizations, the product aims to balance snug comfort with natural arm movement.

Fit, care, and material details

• Fabric: 100% cotton knit with a TOG of 0.5 for a light, breathable layer.
• Weight range: S size covers 6-14 lbs (0-3 months); M and L sizes are available for growing babies.
• Care: machine wash warm and tumble dry low for easy maintenance.
• Patents: US 11,812,795 and D833,613 with global patents; supported by IHDI hip-health recognition.

In everyday use, caregivers often find this transitional design helps maintain a secure feel while offering a natural level of arm flexibility. It’s especially suited for babies who prefer arms-up sleep, are starting to roll, or break out of a traditional swaddle. While every baby is unique, many families appreciate the simple, practical approach to a smoother sleep routine.