ok i have just read on a different forum about the powersun MVB bulb and toothless has ben having the same problems too we have the solor glo from exo-terra but he started closing his eyes and gaping in his basking area temps was still good but then he started hiding thought it was cuz he was new to the surrounding but now reading this i think it was the bulb so if u got the bulb u might want to keep an eye on your little ones too cuz we r learning the hard way now cuz he was fine and like a light switch he stopped eating wont keep his eyes open and just laying there we r having to force feed him and hope he pulls thru without and long term damage thanks for adding too cuz newbies like us need to know about stuff like this