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St Mary's Automatic Electric Mattress Pad - The Warm-Up

Warm-Up Work?
-A special low wattage system provides more warmth at the food of the bed, less warmth in the middle.  Adjust the thermostat control for warmth desired-then forget it-consistent warmth will continue automatically. It adjusts to room temperature changes all night long. It pre-warms the bed when turned on before retiring. Detailed operating instructions are inside the package. 

Why Dual or Two Control?
-For sleeping together, each side of the bed can be warmed separately for individual comfort.