Electrowarmth Twin, Heated Mattress Pad, Non-Fitted, Size 36 x 60, Model# T36 12V Used in Trucks, RVs, Campers Radiant heat from below relaxes tired back and legs, induces deep, restful sleep all night. No fumes, noise, vibrations Save fuel using this bunk warmers instead of idling the truck for heat. Low amp draw, 6.2 amps on high Radiant heat from below relaxes tired back and legs, induces deep restful sleep all night No fumes, noise, or vibrations Made in the USA