Zipper footed pajama with non-slip sole. 100% Pima cotton. Every piece of Rockin’Blinks collection includes specific sleep information for the stage you are buying. We want to help you establish healthy sleep habits by helping you understand sleep at your child’s age. You will LOVE the collection. But children don’t just sleep well by wearing beautiful pajamas. When you buy Rockin'Blinks look for the tag including top sleep tips.