Material: 65% Polyester 35% Cotton, Hypoallergenic Polyester filling. MATTRESS SIZE: Ready New Product Size is approx. 100x100cm (40"x40"). Because of fluffiness of cushion, the size could be slightly different. After use, the pillow is pressed a little and the size increases for few inches. This size good fits for 41"-47" teepee. DESCRIPTION: Big and soft floor cushions for your teepee tent. The cushion is very soft. Please do not expect it will be bouncy or more harder. Kids love to play and sleep on this soft mattress. CARE INSTRUCTION: No cover on top. The whole pillow is washable.  *Hand Wash / Dry Cleaning *Wash alone *Air Dry *Do not iron (We doesn't guarantee a fluffiness after washing).