Photo 1 of *, OPENBOX, UNTESTED*Sealy Heated Mattress Pad King Size 78x80 Inch | Luxury Quilted Waterproof Electric Mattress Cover with 10 Heat Setting Dual Controller & 1-12 Hours Auto Shut Off | Fit Up to 17" Deep Pocket

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Photo 1 of *, OPENBOX, UNTESTED*Sealy Heated Mattress Pad King Size 78x80 Inch | Luxury Quilted Waterproof Electric Mattress Cover with 10 Heat Setting Dual Controller & 1-12 Hours Auto Shut Off | Fit Up to 17" Deep PocketPhoto 2 of *, OPENBOX, UNTESTED*Sealy Heated Mattress Pad King Size 78x80 Inch | Luxury Quilted Waterproof Electric Mattress Cover with 10 Heat Setting Dual Controller & 1-12 Hours Auto Shut Off | Fit Up to 17" Deep PocketPhoto 3 of *, OPENBOX, UNTESTED*Sealy Heated Mattress Pad King Size 78x80 Inch | Luxury Quilted Waterproof Electric Mattress Cover with 10 Heat Setting Dual Controller & 1-12 Hours Auto Shut Off | Fit Up to 17" Deep Pocket