The Sleep Philosophy Bed Guardian mattress protector helps protect your mattress from stains while forming a barrier between you and dust mites, bed bugs, allergens, pollen and pet dander. 3M Scotchgard and waterproof, the pad fits twin, twin XL mattresses up to 14", full, queen and king up to 20" 3M Scotchgard™ stain release treatment protects against stains Waterproof barrier protects against liquids. Barrier coating blocks dust mites, bed bugs, allergens, pollen and pet dander Engineered zipper flaps keep intruders out Inner seams are stitch-lapped for extra protection Fits twin, twin XL mattresses up to 14", full, queen and king up to 20" Durable microfiber is hot water washable Features: Bed Bug Blocker, Waterproof, Scotchgard Protector, Dust Mite Barrier Bedding Closure Type: Zipper Bed Size: Twin Base Material: 100% Polyester Care: Machine Wash Protection Level: Moderate Mattress Pads & Toppers Type: Mattress Protectors Country of Origin: Imported