Ive done 52 hours without sleep. It was quite the feat, my eyes were bloodshot and I had poor motor functions. I think I ended up falling down the stairs.
Every year I work at a camp for kids whose parents are in the military... During those eight days, one is lucky to get an hour of sleep. But the longest I've been without sleep is 10 days... I was a zombie after that, and slept for 2 days.
i have a form of insomnia... some times ill go days straight and not even notice... and when i sleep it will be like 13 hours but i will remember laying in bed for hours at a time wide awake...