How many hours sleep do you need? by Dr Michael Farquhar “Six for a man, seven for a woman, eight for a fool” said Napoleon Bonaparte. “Great leaders need less sleep” and for a perceived leader to admit to anything else is often interpreted as a sign of weakness. Margaret Thatcher cultivated the impression that she functioned with ruthless efficiency with only four hours of sleep a night… probably true in a crisis, but at other times she got far more sleep. Stories about thos