When I was in high school, I frequently got home at 7:00pm or later. Or else, I got home at 3:00 and then had to go back for rehearsal or practice by 5:30. Th

When I was in high school, I frequently got home at 7:00pm or later. Or else, I got home at 3:00 and then had to go back for rehearsal or practice by 5:30. The time I did have free would be broken up by changing clothes and eating dinner (making it if parents weren't home) and taking a dump. I've now been working at a company for 3 years where hours have been flexible (core 10am-4pm). I use an alarm clock once a week (a 7:00 AM meeting on wednesday) which I only need about half the time. Yes, sometimes I have sleeping problems and I can trace them directly to choices and habits (often, though, they are really hard choices-- eg spend time with girlfriend or not). But it's still enormously easier to avoid chronic tiredness when you don't get stuck in a bad-sleep cycle where you can't fall asleep at night and get forced out of bed every morning before the sun comes up.