what are the night time temps like?

If its cold you could use a inexpensive, small space heater to bring the general area temp up, but keep an eye on the space heater.

Hopefully, others can offer better heating advice.

I cant offer really good advice on heating because I live in south florida where it is hot and humid. My lizard is generally outside except when it gets 65 and below. I then i bring him in and he sleeps on my book case and then i bring him out again.

Anna