This is a luxury microfiber mattress protector designed to provide you with maximum comfort using the best quality materials. The upper surface is a luxurious 100% percale fabric, this then has a generously deep anti-bacterial(filling) to create a soft, safe sleeping surface. The extra deep sides will accommodate a deep mattress up to 18 inches. The Sleep Defense System Which Serves Several Purposes All at Once - Protection from bed bugs, dust mites and stains, allergens and waterproof membrane that repels liquids from body fluids, perspiration, urine & accidental liquid, great for those with kids, pets, allergies, asthma, eczema or incontinence Product Specification : Material : 100% microfiber King size：76 x 80 inches Fits mattresses with a maximum height of 18 inches Machine Washable for Easy Cleaning and Lasting Use- Washing at hot a temperature that kills dust mites. Normal cycle. Do not bleach. Tumble dry, low, normal cycle. Do not iron.