Fabric100% cotton TOG Rating0.5 The Zippy Freedom has all the benefits of the original Zipadee-Zip with even more freedom for baby to move. A safer alternative to having loose blankets in the crib Keeps them comfy and covered during naptime and nighttime Designed based on safe sleep recommendations from the American Academy of Pediatrics (AAP) Suitable for little ones 3-18 months Intended for sleeping only and should not be used for walking or running