Hello! I'm new to the group but YES, I have used the Chili Technology because I could not endure the extreme heat fro my foam mattress. It was well worth it!!! There is a way to get a discount. This is my first post so I don't want to say anything that I shouldn't (like I'm trying to advertise for them). I don't have experience on this board, but I bet there is a way for you to send me a private message if you want more info about my experience. Or maybe someone will fill me in on what I can or cannot say. Good luck!