The Linenspa Zippered Waterproof Mattress Encasement in Twin size is a modern and stylish addition to any bedroom. Made from a blend of polyester, vinyl, cotton, and cotton blend materials, it provides comfort for all seasons and features a zip closure for easy access. This hypoallergenic and deep-fitted encasement offers bed bug protection and is machine washable for easy maintenance. It is soft, quiet material that will not change the sound or feel of your mattress but will protect your investment from bed bugs, spills, accidents, sweat, dust mites, etc. More than a mattress cover, it completely encases your mattress. Even the zipper is waterproof. The manufacturer warrants the product for 10 years.