Shield your mattress without giving up comfort. This fitted protector features a soft brushed polyester top for a smooth, quiet sleep surface, plus a waterproof Aquatight™ barrier that helps block spills, sweat, and everyday messes. The elasticized skirt creates a secure fit on mattresses up to 18'' deep. It's a simple way to extend the life of your mattress while keeping things clean and dry. We love that it arrives ready to use.