This week I have merrily been going to bed around 12.30 - 01:00 am. Getting up around 06:00 - 06:30. It's a pretty predictable sleep pattern. So I guess im happy with around 5-6 huors sleep a day. If I sleep in I feel guilty as I feel im missing out on stuff to do and time to spend with my Family. I don't feel to bad for this ammount of sleep. So how about everyone else. How much sleep do you need to stop you becoming a foul tempered beastie first thing in the morning. What is the definitive ammount of sleep we need ?