Arkwright's Cascade Waterproof Mattress Pad is designed for its breathability; unlike fully polyester protector, Cascade protector provides protection and comfort to keep your sleep nice and cool; enjoy every minute of your bedtime. This mattress waterproof protector is a perfect choice if you're considering a relaxed, soft, undisturbed, and high-quality mattress; Layers of Protection (Polyester Top and Vinyl Bottom layer) the fill inside is 100% microfiber polyester, safe for the allergy sensitive. High thread-count material makes this protector durable during the long night sleeping; snuggle away with your partner for a cozy and restful night's sleep, no worry of waking up sweaty. The fabric keeps the air flow circulating giving you a comfortable night's sleep, stretch-to-fit design easily fits up to 15"" deep mattresses; suited for personal use or a guest bed, the polyester mattress protector makes a versatile addition to your home. Machine washable, which adds the convenience of washing and drying easy, too much soap can strip the protector so don't use and pad has waterproof topper helps your mattress lasts for years.