well, just so happens my baby does this too, my plant and his hide are directly over the uth, or under tank heater, but anyway, they will go anywhere they feel the most secure and most safe, they are nocturnal, and my plant makes a shadow over where he lays under the plant, im guessing it is, he will eventually go in the hide, what hides are they, half log? if so go get cups from the dollar tree, and then just cut a hole in it, just a "half circle" hole on one "side of a circle" if you understand tht, but yeah, im guessing its pretty normal, if the plant and warm hide are over the heater hes probably most warm there, just make sure you have a thermostat to keep the heater under control, ive seen gruesome burns on snakes from the uth.