I know I'm tired when I start feeling uncomfortable (almost sick), feel like I can't keep my eyes open, and start drifting off into dreams. Usually I feel this way in the morning shortly after waking up, rarely before I go to bed. I know that if I get under 8 hours of sleep, however, that I feel very sick (nauseous and chills and falling asleep) so I always try to go to bed at least 8 hours before I need to be up.

I really wish that I was one of those people that only needed 5 hours of sleep. I am the kind of person that always feels a little tired, except when I am actually asleep. I also have very awesome, vivid dreams that feel real while being better than reality, and encourage me to sleep.