The RIGHT equipment doesn't have to be expensive. Like the hydrofarm thermostat, its only $30.00 and will be FINE. I have several of them and would maybe even give you one if you were intrested in it and pay shipping. Many people have little differences in the way they care for their snakes but 99% of people on this website will agree you need a thermostat. Its just not worth the risk to possibly burn your snake or worse. Thats they only thing that people would say that is wrong with your setup....other than that and droping your temps at night, you're doing fine.