I know a number of guys around my area who are workaholics and don't get enough sleep. The younger guys (under 40) are aging prematurely. The older guys look like hell, and a number of them have serious health problems, also. I'll pass. I'm a workaholic too, but I typically get 7-8 hours of sleep. A lot of the time when I work later than I should and don't get enough sleep, my productivity suffers enough the next day that I would have been better off just quitting earlier.