I never could sleep. Even when I was a kid, I would annoy my parents by having these nights when I wouldn't get to sleep and would keep whining about it.

Now that I'm an adult, I'm the guy who volunteers for night shift. It usually means more money, and I'm comfortable with it. I've reached the point where sleep isn't a thing I think I have to do at certain times, it is just a thing I do when I feel like it is time.