KinderMat's PillowCase Style Print Sheets add a little extra comfort, protection, and fun to your child's KinderMat. The sheets design makes it easy to slip over your mat and the sewn-in flap keeps your mat snug inside. The full cover sheet will provide protection for the entire mat and is machine washable, making it a breeze to clean! Made of a soft cotton flannel and four fun designs to choose from, any kid will love laying on and looking at these sheets.