I think I have this too. Have Always been a night owl, altho I now know a lot of little kids want to go in and sleep with Mom and Dad after they can walk. Work always kept me on a schedule pretty much. If I stayed up too late one week night I'd be OK the next day. But Dying the next day. I will look for Anything which will help me because I'd really Like to be in the mainstream with my schedule as much as possible.