I'm not a picky sleeper. If I'm tired I can pretty much go to bed on command. Not to the level of my INTJ dad though, hes like a robot, out in 2 minutes flat!! I pretty much don't wake up once I'm asleep. Comfort isn't much of a concern. As long as the bottom sheet is somewhat secured and my pillows are in order... I'm good to go.
Besides... I kind of like the act of yanking a duvet, throwing my pillows down and sleeping in defiance. I usually wait until I'm passed the point of mental and physical exhaustion.