Keep your bed warm and comfortable with this Sunbeam Heated Mattress Pad and USE YEAR ROUND. The exclusive wiring system senses and adjusts throughout the blanket for the ultimate comfort. The Sunbeam mattress pad with five heat settings and timer is available in multiple sizes. It is made from a polyester material with a non-woven top. The twin/full sizes come with one controller and the queen/king sizes include two controllers. The skirt fits up to 16" mattresses and it is machine washable.