I try to get 7.5h of sleep in practice - but in reality. Weeknights are usually 2am - 8:30am (not enough). So then on Saturday I naturally sleep 10 or 11 hours straight to catch up to the lost Z's throughout the week. As a night-owl, but fully employed and accountable at work, it's a difficult game to play - And I'm sure I will pay for it as I get older.