I just got a bearded dragon and I am i love with it. The problem I'm having, however, is this: I know that beardies need a certain amount of darkness at night. I live in a small apartment though and work rather sporadic hours. Is there a way anyone could think of that would make it dark for them without having to sit there in darkness myself? I thought about draping a sheet over its tank but was afraid that would make out too hot or hard to breathe. Any suggestions?