Well,I need 6-8 hours but the last 3 weeks I been getting a few hours of sleep, but I've went for days without sleep, I'm not sure if its insomnia or what, but it's terrible. I have a summer job doing part time construction and another one doing bell hop at a resort and I just eat alot and drink alot to stay awake and load up on caffeine and coffee :/. But all work and no sleep is going to kill me, I'm way too young for this haha.