Sleep: Getting enough zzzzzzz's?
I've been a night owl all my life.
As a flight attendant in my 20's and 30's, I used it to my benefit. When others bid for trips that left and returned home at a decent hour, if I worked under a moonlit sky, I'd snag a better schedule (with coveted or more days off) those senior to me didn't want to fly.
Assigned to the int'l division in JFK, I didn't bat an eyelash at working starry transatlantic flights filled with snoozing passengers. Flying over the pitch black Amazon to South American ports of call? A cinch.
As a domestic stew, my nocturnal nature paid off, too.