When you go to sleep...?
917479
Completely dark, pitched black!
491528
When you sleep you go through different cycles, most notably, REM. This period is where you are deepest asleep and you dream.  Its the climax of your sleep cycle. When people nap, they generally don't go through their entire cycle, hence they wake up and don't feel as though they slept at all.  Generally, you need to sleep at least 3 hours to go through your entire sleep cycle, anything shorter than that, and you will feel groggy and tired when you wake up.  Instead of taking naps, try just resting and relaxing without sleeping, for 20-30 minutes.  That is generally the best thing to do when you are tired during the day.  It refreshes you, and won't wreck your sleep schedule, like naps will do.
1117127
YOur eyes are closed.
1032076
One of the only questions with no answer - Are you asleep?  \n\nSweet dreams
527812
your body is still partially asleep. they say it takes a few hours after you get up before your fully awake and alert.
229919
it is time for you to get up sleepy head!!
240333
Sleep during the day.
368322
nothing just go to sleep
42726
Only if you are awake.
451143
OK , honey , now go to bed . Please ?
916562
oh go to bed or something....
416315
You are getting very sleepy.
79305
sleep b4 taking off. :)
490073
sleep  more  at   night.
861658
Go 2 sleep and get some rest!
274786
OK, there, time for some sleep now!
7647
I'm in finals, so I'm having trouble going to sleep at night because I've been studying so hard during the day. So I'm mostly thinking, "Please let me go to sleep, please let me go to sleep."