This exclusive Omiguard Advanceâ„¢ fabric with rapid chilling cooling fiber dispense body heat throughout the surface of the protector at the rate of five times faster than that of a regular polyester, focusing solely on heat reduction along the sleep surface providing a refreshingly cooler sleep which also provides protection from dust mites, allergens, stains, mold, mildew and moisture. Works on any type of mattress and is adjustable bed friendly.