Our Beautyrest heated mattress pad contains Secure Comfort technology, which is designed to virtually eliminate Electromagnetic Field emissions. The soft flexible wires and quilted top ensure your comfort. The fitted skirt is designed to create a perfect fit and fits up to a 17" mattress. Our heated mattress pad is machine washable, with a 10 hour auto shut off, 5 setting temperature control. Twin and Full size have one controllerFeatures: Content:200 TC 60/40 Cotton/Poly Dimensions:54"x75" Twin and Full come with 1 controller 5 Heat settings 10 Hour automatic shut off Easy care Machine Wash Beautyrest 200TC Heated Mattress Pad Full