Yeah I have to hit a sleep cycle. 5 Hours is terrible, 3.75 is a good amount of sleep for me. If I oversleep and wake off a sleep cycle, e.g. 8.5 hours, I would

Yeah I have to hit a sleep cycle. 5 Hours is terrible, 3.75 is a good amount of sleep for me. If I oversleep and wake off a sleep cycle, e.g. 8.5 hours, I would have been better off getting up earlier and on a sleep cycle (7.5 hours or 3.75 hours). If I sleep 3.75 hours in a night, I will get tired later on in the day, but I won't find it difficult to get up. But I can top up with a nap during the day. My most efficient days have been sleeping in three, 3.75 hour sessions spread throughout the day and without daylight. I wrote my PhD thesis like that. Its not a good method for working with people though.