What kind of bedding do you have for them? It's annoying, because a lot of the UTH packages don't say to use a thermostat, but it is imperative! Honestly, I think that the brands that do not say you need a thermostat are being irresponsible, and it's unfair to the user (snake and customer).

I use a terrarium carpet as well as bedding (cypress) so that my guy can't burn himself if he digs down to the surface. I also use a thermostat.