I don't know about anyone else, but around here, it is just too hot in the summer for the kids to get out and play any earlier than eight or nine. So, yeah, I don't have a problem with my children staying up late and then sleeping in. I mean, sitting here, right now, at 12:30 it is still 85 and hot and muggy. YUCK! And during "regular" hours, it is just unbearable. But, we are night owls anyways.