[oditogre]

Varies by how long I've been awake. 5 - 6 hours on weeknights. 8 - 9 on weekends (but the entire 'day' - from time I woke up on Friday to time I wake up on Saturday, for instance - will be longer than 24hrs total). I can get by on 4 or 9, but usually less than 5 for 2 days in a row or more than 9 under any conditions and I feel like hell all day. When I have extended periods (more than 5 or 6 days) where I have no particular reason to get up at a certain time, I fall into a sleeping pattern essentially the same as the '28 hour day / 6 day week'. My sleeping habits have been about the same since puberty, and my mom's are about the same as mine (my dad sleeps about 9hrs a night).