I really love being a night owl, staying up late is really fun and can really get your mind going,
I know what you mean but lately I have been going into work early. My night owl days are saved for the weekends.
Indeed for me that seems the same, In fact the term night owl is derived from the primarily nocturnal habits of the owl. 
I guess I never really thought about that. I bet there are a lot of people that are night owls.
Yep, Many when it comes to animals researchers typically use the terms "morningness" and "eveningness" for the two chronotypes or diurnality and nocturnality in animal behavior
I wonder if some people benefit from being a nocturnal night owl. I wonder if some people are just programmed that way?
night owls may stay awake until just before or even after dawn. Night owls tend to feel most energetic just before they go to sleep at night. 
Some night owls have a preference or habit for staying up late, or stay up to work the night shift. Night owls who work the day shift often have difficulties adapting to standard daytime working hours.
Night owls have often been blamed for unpunctuality or attitude problems. Employers, however, have begun to learn to increase productivity by respecting body clocks through flexible working
"Shūkan Bunshun", "To be honest, I've never really thought about whether my movies were being watched by men or women. We always presume that only guys are going to turn them on... Still, this'll be a great chance for girls to get to know about the porno movie industry. I think the most enjoyable part of the night is going to be the questions asked after the films are over. I wonder what the girls are going to ask me?"
At the 17th Pink Grand Prix