Sleep Philosophy Highline 3M Mattress Protector Microfiber Bed Cover Twin White 100% Plyester Imported Set includes: 1 mattress pad Materials: 100percent polyester filling: 100percent 6D fiber Measurements: 39-by-75-inch mattress pad with a 13-inch drop length Machine washable Made from ultra-soft microfiber with a hypoallergenic polyester filling, this mattress topper is machine washable and fits up to an 18 mattress