hmmm…what did yogi’s think of sleep…lemme scan my little brain…
Here are a few things that I know of, from an occidental standpoint…Evolutionary scientists believe sleep is a vestige function left over from our primate life. Because you couldn’t hunt at night, there was no point of wasting energy, so the best thing a primate could do was sleep and conserve energy…A few other scientists believe sleep is a function to slow down our metabolic rate and give organs a resting period (although it is speculated other than your heart, every other organ functions equally exhaustive tasks)…A few other scientists believe sleep is a psychological response to reduce nervous stimulation that happens during the day (although if you take dreams into account, there is a lot of nervous activity that goes on)…
Now what do Yogi’s think of sleep…I know very little…but if you are a determined sadhak. It means you are wasting time sleeping…Coz the desire for sleep is never reduced during your life time…(think about it)…Yogi’s believe a few hours of sleep coupled with a few hours of meditation should do the trick (it has been proved scientifically, that even though you sleep like 8 hrs, only 2 hrs of alpha/theta/whatever waves is sufficient to feel deeply rested and the rest of 6 hrs is wasted in getting into and getting out of these alpha/theta states…So when you practice meditation before sleep, you should be able to achieve those states much faster there by requiring less sleep)…From a totally different few point, sleep is viewed a very important aspect of Sadhana, because that is the only time your astral body gets a chance to move out of your logical environment shackles…
now you know all I know about sleep…
Yours truly
Viraagi