Serta | Luxurious Sherpa Heated Electric Mattress Pad with Safe & Warm Low-Voltage Technology (Full) INCLUDES: (1) Electric heated mattress pad MATERIALS: Made from soft and luxurious 100% plush polyester fabric with built in micro-thin wires for more even heat distribution without the bulkiness. FEATURES: Patented Safe & Warm non-hazardous low voltage technology is safe in the presence of moisture, will not harm pets, and emits no EMFs. Our patented low voltage technology is the only electric mattress pad technology that is certified as non-hazardous. Single control automatically shuts off after 10 hours for convenience. Giant backlit display with auto dimming feature for night time adjustments with out having to turn on the lights CARE INSTRUCTIONS: Machine washable; 3-year manufacture's warranty DIMENSIONS: Full - 54"x 75"