Happiest Baby SNOO Comforter Sack – 100% Organic Cotton Swaddle for Safe Hip Development (Rose, Large)

Meet the Happiest Baby SNOO Comforter Sack — a warm, snug swaddle designed for use with the SNOO Smart Sleeper. Crafted with care and informed by pediatric guidance from Dr. Harvey Karp, this sack blends baby-friendly materials with smart design to support calmer bedtimes and easier routines for both little ones and caregivers.

Warmth, safety, and breathable comfort

The outer shell is a softly textured 100% organic cotton, gentle on delicate skin, while the inner insulation is 100% recycled. With a TOG rating of 2.0, it adds warmth for cooler nights without overheating, helping your baby stay cozy during sleep and naps.

• 100% organic cotton shell
• 100% recycled insulation
• TOG 2.0 warmth for cool rooms

All the features you love

The SNOO Comforter Sack preserves beloved sleep-sack benefits with thoughtful details: patented wings to help keep babies on their backs in SNOO, snug inner bands to maintain a wrapped feel, and shoulder snaps to allow arms-out sleeping when desired.

• Patented wings secure little ones on their backs in SNOO
• Snug inner bands help maintain a wrapped feel
• Shoulder snaps enable arms-out sleep
• Two-way side zipper for quick, late-night diaper changes

Two sleep modes in one swaddle

Inside, soft inner flaps offer a womb-like embrace that may help reduce startles and support a calm sleep rhythm. The design also allows the arms to be unsnapped for an arms-out option, creating a gentle bridge toward crib transition.

In Rose color and Large size, this SNOO Comforter Sack pairs warmth with secure positioning for families using the SNOO Smart Sleeper. While outcomes vary, many parents appreciate the flexibility to adjust warmth and sleep style as their baby grows. Designed with hip-friendly positioning in mind, the sack supports natural leg movement within the SNOO system.