The BedPure Mattress Encasement is a waterproof top mattress protector that fits twin XL size beds. It is made of polyester material and features a white color. The encasement is designed to protect your mattress from spills and stains, and it is easy to clean by just washing it with water. It also has a non-slip bottom to keep the mattress in place. The item length is 80 inches and the item width is 38 inches. It is suitable for use in a bedroom and is made by Protect-A-Bed brand. Care instructions advise not to bleach the encasement.