So, my girls are coming on 4 weeks old, about 75% feathered. I just went to the basement to give them a treat and the light was out in the brooder. We keep a light on over the washer/dryer which is near the brooder, so it wasn't totally dark. Anyway, they were sleeping, but not huddled like they were cold. Could I start turning their light off at night, to maybe help them for when they move into the coop? I would say our basment is probably around 70 degrees, maybe a bit warmer through the night, since we have been running the furnace some still.