So, it's been almost a year since a 45 lb. (and growing) Sulcata walked into my life. Have learned a lot, and he has had a wonderful summer free ranging daily around my acre and a half fenced property (and sometimes into the house...) I had a heated insulated dog house for him last winter, but in the spring he chose to move into an dogloo in a stall, where he returns each evening and burrows in the straw. With cooler nights and winter approaching, am getting a bit worried about housing. He never really liked the dog house as it had a wooden floor, and now that his habit is going into the stall, I think it's going to be difficult to persuade him to use the dog house or any other heated enclosure, and he's getting too heavy for me to move. It's also not very safe to bring the electricity out to the stall with all of the other animals around to interfere...I guess what I'm asking is could he be OK burrowing in the igloo, perhaps I could cover it with rugs and put plastic flaps over the door?? Appreciate the feedback and/or suggestions.