?Made from our signature blend of ultra-soft and sustainable fabric using TENCEL™ Lyocell waffle knit, our 1.0 tog baby sleep sack keeps your little one safe and warm all night long. Designed specifically for bedtime and naptime, this cozy and clever solution can’t be kicked off—which means a more restful sleep for the baby and the parents! It features a 2-way zipper that opens around the bottom for easy diaper changing and a sleeveless design that allows babies to move their arms freely. Insulated with Dupont Sorona, it keeps your baby cozy and comfortable. Manufactured at an OEKO-TEX Standard 100 certified factory, you can feel confident that our sleep bags are free of toxic chemicals and always safe for your baby.