Warmth 1.0 Tog: Made of 100% cotton fabric and fluffy polyester filling, our baby sleep sack is super soft and skin-friendly to baby's delicate skin. 1.0 TOG sleep sacks are suitable for room temperatures from 68℉ - 75℉, keeping your little one comfortable. Certified by the Consumer Product Safety Commission(CPSC), these baby sleeping bags ensure a secure and safe sleeping environment for your little one.

Convenient 2-Way Zipper - Unnivoll 1.0 tog sleep sack with premium smooth two-way zipper, parents can effortlessly change diapers during the night, ensuring uninterrupted sleep for your baby. What's more, the zipper protector at the top shields your baby's delicate chin from any zipper scratches. Your baby's comfort and safety are our top priorities!

Quilted Design for Durability: Unique quilted stitching ensures even distribution of fillers, sleep sacks will not lump or shift. With preshrinking process, our sleeping bag has a shrinkage rate of less than 2% after being washed by machine and low-temperature drying(below 30℃/86℉), making this newborn sleep sack more durable and practical for daily use.

Roomy Spaces - The baby sleep sack offer ample room for kicking but can not be kicked off. This can promotes baby's healthy hip development, while the sleeveless design reduces the risk of overheating, ensures free arm movement, and provides lasting warmth for your little one.

Essential Baby Item: Our quilted sleep sack with four sizes for choose; S(0-6 months/10-18 pounds), M(6-12 months/16-24 pounds), L(12-18 months/22-28 pounds), XL(18-24 months/26-34 pounds). As a must-have for parents, baby wearable blanket is suitable for both boys and girls!