With Tyler, I cover her cage if I want to stay up and watch TV, listen to the radio or use the computer. I do try to have a bedtime, but don't stick to it 100%. It just really depends. During the week I am more stuck to a schedule and on the weekends we are more laxed. The one advantage of covering a cage is that they are relaxed and can sleep. Although Tyler will nap during the day without the cover. I don't use the cover as a means to keep her quiet, but sometimes when she is having a fit I assume it is because she is tired so I will cover her then. It usually works, but I would assume it depends on the bird?