I agree. I've had some serious, work-affecting problems with caffeine addiction. After a while, it stops keeping you awake and simply becomes something you must

I agree. I've had some serious, work-affecting problems with caffeine addiction. After a while, it stops keeping you awake and simply becomes something you must have in order to survive. It's fine for occasional stretches, but it's a really bad idea to develop a high-coffee lifestyle. You're right on with the power naps-- they shouldn't last an hour-- but I'd add that meditation and brainwave entrainment are probably better. If you can coax the brain into a theta state, that seems to have the same positive effects as power naps, if not stronger ones. It's in the theta state that the brain reverses some of the effects of mental fatigue. To combat the grogginess coming out of the theta state, either entrain a beta state, or exercise. Power naps can be dangerous, especially at 2:00 in the morning. Facebook is the wrong kind of distraction because it breaks flow. It's possible to walk to the kitchen and get a sandwich and still keep one's state of flow, whereas checking facebook (like an interruption from the boss) tends to break it, because there's too much higher cognitive processing involved. Since one of the sharpest declines throughout the day is in the ability to regain one's concentration, this is a big problem.