Napoleon said that a men sleeps 4 hours, a women for 5 hours, a leezy man for 6 hours
Peronaly I sleep 5 hours every day, from 10 PM to 3 AM, with one hour of lying meditation from 9PM to 10AM.
I see that:
- when you meditate before sleeping, you sleep less and better
- hours before midnight are more efficient that after midnight
- if when you go sleeping, you think not about "that is cool to sleep a little bit afret a day of work", but about "that its cool to rises tomorow", the body will sleep less, and better, and will stop sleeping when it's ok. Sometimes I sleep for 2 or 3 hours and i fill my mind clear and body full of energy
- when you eat less you sleep less and better
Anyway, our mind need to rest when he is tired from interaction with dhammas, when he suffering during the day. When some one walks on ditry slushy ground, it's brings fatigue, but if he is slipes on ice, he is less tired for the same distance. So to sleeps less we have to slide on the dhammas, not apropriate it; slide on waves but not sweeming agains it.
When our mind is here and now, complitely awere about the think that he do now, there is no suffering, the mind is peacefull, no fatigue, so dont need to sleep alot.