Perfect Fit SoftHeat Smart Heated Electric Mattress Pad with Safe & Warm Low Voltage Technology, 233 Thread-Count, Dobby Stripe (Twin) polyester INCLUDES: (1) Electric heated mattress pad and 10-setting controller MATERIALS: Waterproof 233 thread-count 80% polyester/20% cotton 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: Incredibly soft 233 thread-count 80% poly/20% cotton dobby stripe decorative shell is that is completely machine washable & dryable without any pilling, shrinking or stretching DIMENSIONS: Twin - 38" x 75" x 10"