I ordered 3 of these mattress pads in Feb of 2015 but didn't use them until September. None of them would work but, because Wayfair only offers a 30 day return, I called the customer support number on the user guide.  They sent me replacements, I couldn't get them to work, would send them back, and they would send me 3 more replacements.  After doing this 4 times I asked them to just refund my money but they claimed they were able to get the last 3 working.  I just received the last three and can't get them to work either and they don't seem to be able to tell me if I'm doing something wrong.  I will never buy a beautyrest again.  I have to provide a star rating in order to submit this review so had to give it one because they don't have a minus 10.