Be very careful with your heating and monitoring. A lot of people make the mistake of trying to heat the inside of the cage to about 85 degrees and they use one of those stick on thermometers on the side of the cage. The problem is, in order to get that thermometer to read 85 degrees, that's going to leave the bottom of the tank at a Blistering temperature, and where does the snake actually crawl and live? Yep, on the bottom. When you monitor your cage temps, make sure the temp is measured inside the snake's Hiding Box where he will spend most of his time. Inside that box is where you want it to be 85 degrees. The other side of the tank should just be room temperature (70 to 80) and that way the snake has a choice of whether to warm up or cool down. You'll need a thermostat to adjust your heat pad and a good digital thermometer with a probe. Most of us affix the probe to the actual heat pad under the tank. You might actually have to set the pad higher to get the reading you want. For example, I have to set my pad at 91 degrees. By the time the Heat travels through the bottom glass, the carpeting, and the porcelain hide box, the actual temp inside the hide is around 85. It might dip to 82 on a really cold day or rise to 87 on a warm day, but minor fluctuations like that are ok. Corn snakes come from the Southeastern USA where the summer temps frequently go over 100. But you would not want you snake to have to endure that. He is going to be most comfortable between 75 and 85.