Unnivoll Baby Sleep Sack 0-6 Months | 100% Cotton 0.5 TOG Wearable Blanket

Meet the Unnivoll Baby Sleep Sack, a lightweight, breathable wearable blanket designed for newborns aged 0–6 months. Made from 100% combed cotton and finished in a calming Green Pine Tree pattern, this sleep sack provides a secure, snug layer that stays put as your baby wriggles and kicks before bedtime. With a 0.5 TOG rating, it balances warmth and airflow to suit warmer nurseries or bedtime routines without heaviness.

Safety and quality you can trust

• Certified to meet CPSC guidelines with a premium zipper for secure closure.
• Zipper guard protects your baby’s chin and skin during movement.
• Designed with thoughtful details to support a safe, cozy sleep environment.

Comfort and breathability designed for warm rooms

• 100% combed cotton and an upgraded process deliver about 30% more comfort and breathability than standard sacks.
• 0.5 TOG is ideal for nurseries around 75°F or warmer, providing a light, secure layer.
• Pre-washing reduces shrinkage by about 50%, helping the sack maintain its shape after repeated machine washing.

The sleep sack features a two-way zipper that runs from top to bottom, making diaper changes smoother at night or during sleepy hours. A zipper guard reduces rubbing on delicate skin, while the sleeveless cut minimizes overheating and keeps little arms free for natural movement.

Room to grow, built to last

Available in four sizes—0–6 months, 6–12 months, 12–18 months, and 18–24 months—the Unnivoll sleep sack is designed to accompany your baby as they grow. The roomy design supports hip movement and keeps warmth secured without excess fabric.

Care and durability are built in: it’s machine washable and can be dried at low temperatures, helping busy parents keep a tidy, cozy sleep routine with minimal effort.