Serta heated mattress pad features smart technology to keep your bed cozy and comfortable during the colder season. Furthermore, the cotton blend waterproof material can save your mattress from any unwanted food spill and accidents from your cute pets. The controller comes with 10 heat settings to choose from and 1-12 hr auto shut off timer to give you confidence for prolong usage. It comes in deep pocket to fit most premium mattresses up to 17" thickness. Mattress pad Queen size or larger will come with 2 controllers and dual temperature feature for each side of the bed. Conveniently machine washable and comes with 5 year limited warranty.