My 5-6 month old beardie has been going to sleep about an hour before her lights go out ever since time changed last weekend. Her lights are on a timer and come on about 6:30am and go off at 6:30pm, but the last few days she has gone under her rock cave by 5pm and doesn't come back out until the next morning. Is this normal? Should I adjust her lights on/off times? She is eating and pooping fine and very active otherwise.