The Random Meme: Sleep

This Meme is about sleep...

1. When you hear the word sleep what is the first thing you think of?
   
2. What are your thoughts on sleep?
3. Would you consider yourself diurnal (active during day, sleep at night), nocturnal (active at night, sleep during day) or crepuscular (mainly active during dusk and dawn)?
4. Do you prefer to go to sleep early and get lots of rest or go to bed late and accomplish more?
5. What is the longest you have gone without sleep?
6. What is a weird fact you know about sleep?