My dragons live in our lounge, and we tend to go to bed after they do. Some of them aren't bothered in the least, but some tend to stay awake until you turn all the lights off.
If in doubt, you could pop a cover over.
depends on your beardie, if he stays sound asleep with his light off and yours on, I wouldn't worry. but you could put a blanket over the tank when his lights go off if you're worried about it
Mirage came out of brumation on April 26. He was doing great. On May 2 he started acting funny. We just redid his tank, and he keeps going into one of his hides. He just lays there. He shows no intrest in food. HELP!