Shield your mattress against spill, stains and everyday wear with this Premium Cotton Mattress Protector from Casaluna™. Made from 100% cotton, this rectangular mattress protector helps extend the life of your mattress while enhancing sleep hygiene. Helping to form an allergen barrier, this waterproof mattress protector is designed with four-way stretch fitted skirt and four-corner elastic to provide a snug fit around the mattress.Casaluna™: Where calm and comfort are naturally at home.