I spent over 6 months sweating at night after buying a $3k tempurpedic mattress for my wife and I… she was comfortable, I was not. I bought a $200 cooling pad and went another 6 months with no resolve… I need sleep with my job and was’t getting it. My wife found your product online. I said it didn’t matter the cost and bought it on a desperate whim to maintain my comfortable mattress and get cool. It worked and I love it. A mattress is one of the best investments you can make… and for those who need different sleep temperatures… this is the best investment you can make if you can’t sleep. Thank you!