Gerber® Sleep ‘n Plays are a parents’ best friend! These soft footies are made with cotton, a comfortable fabric that’s perfectly breathable to prevent irritation against baby’s delicate skin. We had this product independently certified with STANDARD 100 by OEKO-TEX® so that you don’t have to worry about harmful substances in your baby’s clothing. They’re appropriate to use as - NB footie pajamas as they’re made to comply with all safe sleep standards. Each Sleep n’ Play features a zipper down the front of the outfit to allow for easy and fast diaper changes. This zipper makes the baby sleeper incredibly easy to put on as well as to take off. Atop the zipper is a safety tab with a snap to keep the zipper held in place. These baby sleepers are footed to add extra warmth which is wonderful for sleepy time as well as if there is a chill in the air. It also means no fooling around with baby socks! Gerber® provides high-quality products that are easy and convenient for parents as well as cute and comfortable for baby.