I have a sunbeam king size heated mattress pad still under warranty ! It does not heat. Have been trying to resolve this problem for quite awhile ! Most of the time they do not reply to my e-mails and when they do they say it is out of stock! I have done all the have asked me to do from my end... had to take pictures and send them. I am very disappointed with Sunbeam and how they are handling this for me! I would like this problem resolved!