To anyone who is reading this. Please do your best to not allow the temp in any part of your cage to get over 95 degrees. 111 is entirely too much. As well, I would not judge by temps on top of my substrate, especially if I had a thick layer of substrate. Just because you haven't seen your ball python burrow does not mean it won't. Temps under the sustrate that are getting over 95 degrees can be very dangerous for your snake. Make the temp on the bottom of the enclosure directly above the heat tape no hotter than 95. Even if you have a thick layer of substrate, and the temp on top of the substrate seems rather low, just remember that your snake is very well equipped to detect very small increases in temperature over a fairly long distance. That means that if the enclosure bottom is at 94 degrees and on top of the substrate is 88 degrees, if the snake feels the need to have a higher temp than 88, it will detect that warmer temp under the substrate, and begin to burrow towards it. Just my 2 cents.