Things that keep me up past 9 pm
1. Missed commitments to achieve my goals
Studying or Reading
2. A television show that can be marathoned
Today it's Pandora's Box - a television show from Japan on NHK Japan. Great cliffhanger. Hard to stop with just one.
3. Books with great stories
Scholomance series by Naomi Novik, A Discovery of Witches - forgot her name. Stayed up past 2am to finish one of the books in the series. Haven't done that since High School.
I used to stay up to watch the late night movies on the weekends when I was in High School