" Jerry Seinfeld, on why he doesn’t get enough sleep: “I stay up late at night because I’m Night Guy. Night Guy wants to stay up late. ‘What about getting up after five hours of sleep?’ ‘That’s Morning Guy’s problem. That’s not my problem. I’m Night Guy. I stay up as late as I want.’ So you get up in the morning: you’re exhausted, you’re groggy. ‘Oooh, I hate that Night Guy.’ See, Night Guy always screws Morning Guy. "

― Annie Duke , Thinking in Bets: Making Smarter Decisions When You Don't Have All the Facts