These Winnie the Pooh™ sleepsuits are made from pure cotton that ensures a breathable feel. A neck-to-foot zipper makes for easy dressing, and poppers around the legs mean changing is simple. Flat seams feel gentle on delicate skin, while babysafe toes take care of the piggies. Sizes from 0-6 months come with integral mitts to help prevent scratching, and sizes from 9 to 12 months have anti-slip feet. We only ever use responsibly sourced cotton for M&S' clothes.