Every once in a while, I write about the benefits of sleep.

http://www.guardian.co.uk/science/2008/jul/14/neuroscience.medicalresearch

regular sleep is necessary for humans to functions, and entrepreneurs are still human.

other than weight loss, greater memory, better health, etc.  There's no reason to get a good night's sleep.

Of all the things you don't have time for, make time for sleep.  Otherwise the time that you are awake becomes wasted.