Having difficulty squeezing everything I need to do into the standard 24 hour day at the moment. So as you can imagine this article on sleep turned up just in time:
It seems you probably need more than you think and it’s difficult to catch up when you haven’t had enough. You need eight hours! Over a period of a number of weeks those who only get six-hours end up as impaired as people who have been kept awake for 24 hours – the brain equivalent of being legally drunk. Gulp!