To sleep or not to sleep

Some nights I stay up and just think, most nights actually. I don't get a lot of sleep usually, like the bear minimum which is suckish at times because I simply wish to lose consciousness, most of the time not to sleep just because I am tired, I mean I'm tired but the kind you can't sleep away. I don't wake up "rested" I wake up wanting not to have, I don't have dreams, or at least don't remember them. So nights become jumbled, days seem to extend themselves.