Luxurious waterproof/stain repellent warming pad is completely machine washable and dryable without any pilling, shrinking or stretching * Safe and warm patented non-hazardous low voltage technology is safer than others on the market; saves energy; sleep better in a cooler room * No more bulky wires; the ultra-thin wires inside the Serta throws are almost impossible to feel; no annoying hot or cold spots * Convenient temperature pre-heat and hold feature that makes sure that your throw is warm and cozy before you snuggle into it; built in over-temperature protection for safety and peace of mind * Pad is divided into two separate zones and includes dual controls for individual adjustment and comfort; automatically shuts off after 10-hour for convenience, safety and savings