Yes, she has a cool side that is around 85, but she tends to stay on the hot side. I think after the changes I made today the temps will be closer to what they should be without a spike during the day. I just wasn't sure if this was a sign of something to come. Most of the time you can't even tell she is breathing, but when she is on the move is when I see it happen. I'm not sure if she is smelling out prey or what. She is a very aggressive eater. I feed f/t and it takes less than a minute before she strikes. I'm very lucky to have such an easy girl to feed. I have had some that take several minutes to entice.