I have a snake that doesnt like hides also, he moves in between the the tub and the outside of the hide.. Its the only snake I have that does this.. His hide is tight, temps are 93 on warm side and 89 on cool side, humidity is 55%... I dont use lamps, its like he prefers to stay outside of the hide... I would get a thermometer and hygrometer, if you go to wal mart they have them in the hardware section for $10 its a combo thermo,hygro with a probe. If temps humidity and using infa red doesnt do the trick I would just let the snake do its thing...