Protect-A-Bed Plush Waterproof Mattress Protector, King Size polyester Imported Extra soft and very absorbent, with a luxurious velour surface. Fits King Mattresses, 76 x 80 x 18 in. Waterproof: Polyurethane film backing repels liquids like urine and sweat. Breathable Barrier Fabric: NOT hot to sleep on. Allows body vapor to breathe through pad. Dust Mite and Allergy Barrier: Miracle membrane backing provides a healthy sleep zone for your family. Easy to Wash and Use: Machine washable in warm or hot water. Tumble dry on medium heat.