I know its kind of off topic, but what really will help regulate temps is Heat Tape! I just ordered some from.... Bigappleherp? I think.. and it looks perfect, and is cheaper than heat mats! You put a thermometer sensor on the tape, and it regulates itself, up to 120 degrees.

I needed to get something other than a heatpad because I bought a cheap one off amazon and it shuts off for no apparent reason, and does not get very hot. Generally unreliable. But I have been doing some reading and alot of ppl say this is the way to go