Experience a warm, gentle slumber with the Sunbeam® Premium Water Resistant Heated Mattress Pad featuring 20 heat settings, 10-hour auto off, preheat options and ambient temperature compensation. Enjoy the cozy comfort of heated bedding for chill-free nights of sleep. Exclusive wiring system senses & adjusts throughout the mattress pad for the highest peace of mind. Rest comfortably as it gently wraps you in warmth. Designed with ThermoFine® technology to automatically adjust to desired heat setting.