Bibliography (4):

1. https://www.lesswrong.com/posts/iTzvJ7kKK2TYJhYHB/solved-problems-repository?commentId=iziGrEzqvqkMkScjE

2. Andart: The Early Bird Gets the Caffeine Pill

3. Caffeine Eliminates Psychomotor Vigilance Deficits from Sleep Inertia

4. Wikipedia Bibliography:

   1. Anders Sandberg