Performs better than I expected: quickly heats the bed linens from the bottom sheet to the top comforter.in a cold bedroom in about 10 minutes on the 'preheat' setting.  Frigid feet caused by slipping into a cold bed are eliminated!!  I turn off the heat when I get into bed.  Dual controls are convenient.  I have not yet laundered the mattress pad and have some concern about where to dry it without using the dryer.  Maybe I'll just wait until Spring!!