[JTenerife]

Uhh, that's hardcore. On the one hand I admire that kind of energy and your results, on the other I'm old enough to see the risks. I hope that was only over a small period of time. Let me generalize without knowing you :-): You need to sleep more at night. It's all about waves. If you overstress during productivity periods your brain will go to a forced shut down afterwards. That can trigger serious issues (burnout a.ka.a. depression).

[dzink]

Yeah, it lasted about 2 months. Now I can only do it a couple of times a week unless absolutely necessary. Instead of coffee I used milk/high protein foods to keep the brain going. At one point it got so bad I couldn't recognize myself and I think I lost a good friend in the process. Another hacker friend who tried this approach said it only worked for him if the naps were perfectly timed - you shift by one hour and you turn into a monster. (he promptly lifted his hands waving frantically and screeched to demonstrate) If you make one of the naps last more than 4 hours, I think you can get some REM sleep and last longer.