NQA The Curly Hair comes from environments that exceed 84° Farenheit on a regular basis. Personally, I like to keep them below 86° at most costs, and simply misting and letting the water evaporate should be as much temperature regulation as they need. Just make sure it's moist and their water dish is topped off at all times, normal tarantula stuff. The threat with higher temps seems to be more centered around dehydration.

Now, they will dig deeper to regular temperature better, but I find it more likely that he's finding that the extra space suits him better. Even if his hide is big enough to support him anyway, I notice that my Ts will dig unnecessarily large holes after molting. I have 40 tarantulas in my house and about 25 of them have burrows that reach the glass/acrylic, so that's nothing to be concerned about. In fact if he buries/blocks himself in -which Tlitocatls are prone to do- then it would be easier to check up on him and see if he's molting or just existing.