Oh, yeah, sorry that I forgot to mention it. It's a heat pad. I know the dangers of using one but I had issues with the heat lamps since they'd burn out in less than a month and were $15 each. It was getting really expensive. I try to make a thick layer of bedding so it isn't as hot but it condensed and gets moved around overtime. They have logs on both a cool and warm side in case they get too hot. The only way those could be burns is if he laid upside down on it with direct contact to it. Looking at the cage now, there's about 2 inches of bedding covering the heat pad. I felt over the hottest spot and it's a very mild warmth; certainly not enough to burn.