i haven't been a morning person since high school, and college cured me of it completely!
I think that having kids contributed to the night owl thing, too....since that's kid-free time. If I didn't get some "me" time at night (and that's really when I accomplish the most around the house), the kids and I would probably strangle each other during the day! When the kids were little, once or twice a year, DH would send me to a hotel alone. I would just spend one day and night, watching TV, getting room service, and sleeping in. It was heavenly, and saved all our sanity! Here's hoping a big night of sleep and some concentrated "me" time is coming your way soon.