I've always been a late night person. I like staying up late. My sisters are late night people too. It runs in my family; both sides. At my family gatherings, everybody stays up late, even the kids as a treat and to help build their late night stamina for the future.
This is a huge contrast to my girlfriend's family. If you've ever seen "My Big Fat Greek Wedding", that's my family, except they're from Yugoslavia.
I was bartending late nights when we first started going out years ago. Most of the time I would head to bed between 4 AM and 6 AM (or even later) after work. We would visit her family overnight sometimes when I had days off.
Her family would hit the sack at 10:30 PM. Zero late night stamina. I couldn't go to sleep that early as a night worker on my days off. I'd spend hours watching cable and drinking by myself on the couch. I could never coax them out of the house to go out or hit the bar at night.
They thought it was very weird that I stayed up so late. I think they thought I was weird too.
Of course, none of them had ever worked nights.
I work days now, but on weekends or when I'm off, I always stay up past 3 AM. As I type this, my girlfriend is already starting to fall asleep on the couch. I'll stay up late and do laundry and download some Racing Forms for the tracks tomorrow. Bedtime? Not for a while.