This Mattress Offers Traditional Comfort To Baby During Period Of Sleeps. It Is Made Up Of Polyurethane Foam And The Cover Is Sewn In Polyester And Polypropylene Which Is Very Soft For The Baby'S Skin. The Anti-Mite And Antibacterial Feature Is Ideal For Babies With Sensitive Skin. The Cover Is Fully Removable For Easy Cleaning And Washing.