The Bear Mattress Encasement delivers complete six-sided protection to help keep your mattress safe and clean for years to come. Its durable, waterproof design shields against spills, stains, allergens, dust mites, critters, and everyday wear. While other encasements have a thick, plasticky, and noisy design, ours uses knit fabric for comfort and breathability. Plus, it’s easy to care for. All you have to do is unzip and remove it, then throw it in the mashing machine for a refresh.