For some reason totally unknown to me, my temperatures has dropped quite a bit. Whereas the cool side was usually between 77-81, it's now at 75. The hot side, between 87-92, now at 83. I haven't changed a thing. I checked to make sure everything was plugged in and working properly. The thermometer probes haven't moved or anything. The temperature in the room was a little lower today, cool weather, not sure how much lower. I've got a heat-lamp, a UTH and a blacklight all giving off heat and a towel that covers up about 1/4 of the top of the lid too. I went ahead and set up a space heater next to the cage.

Anyone else had their temps just sort of mysteriously drop? Anything else I should be doing?