Headaches, Stomach aches, and generally feeling like crap.
And I end up with the attention span of sperm, which makes for a smashing conversation.

I can easily stay up 24 hours straight as long as im doing something and not sitting around. However, my eyes will start to feel sore. 48 hours I did twice, I was tryin not to fall asleep where I was.

When I get too tired, I simply can't concentrate, my eyes get sore and tired, and I end up eating loads of stuff I shouldn't (ie, junk food!) I always try to avoid driving, since I've had a few near misses in this condition. >< Not good.

So friday night at the theatre………

I can stay up as long as I absolutely have to, but I seem to get snappier and really ill-mannered the longer I stay awake. And after a while everything starts moving around, and I start taking longer blinks...it's what I think being drunk is like, especially when I have to drive.

I pulled all-nighters writing term papers, something I'd rather not do again. If I don't get enough sleep, I end up going the next day pissed off, drifting in and out of sleep with a sort of scowl on my face and biting anyone's heads off who make any effort in communicating with me.

Takes about a day and a half to recover from it.

When we had to rush our Thesis to meet the deadline. Revisions galore! Was not able to get enough sleep. After that, I got headaches and the flu >_<

Got to recover after a week of resting. Heh.

My sleep patterns are really, really weird and chaotic, no thanks to my rather high caffeine usage. My body seems to decide that it's time to sleep without any rhyme or reason; sometimes, I'll be sitting in class or at the computer just a few hours after a good night's sleep, and I'll suddenly feel very tired. OTOH, as of right now, I've been up for almost two days straight, and I'm much more energetic than usual right now. o_o

something tells me that I'll probably sleep all day tomorrow, classes be damned.

For some reason, if I stay up for more than a day straight or so, I start to feel much hungrier than usual for some reason. My speech and writing become a bit unfocused and wordy, but I'm usually guilty of that even when I'm well-rested. ^^;

Hey, I'm pulling an all nighter right now! But weird thing is, I'm here in GFF... hmmm. I should get to work. But first,
I always 'plan' an all-highter. I make sure I get home really early afternoon, sleep for at least two hours and at six, I know i'm wide awake the rest of the night. Oh, and it doesn't hurt to have a bit of turkish coffee to help me out.

Not getting any sleep isn't the best feeling in the world. At a certain point, I can feel my entire body shut down but my eyes are too bloodshot to close by themselves. That, plus the once steaming pot of coffee gets my hands so jittery it becomes impossible to get half of you to sleep when the other half's wide awake. Definitely not healthy and definitely not recommended.

You guys might want to check this site:

http://www.sleep-deprivation.com/

Personally, my longest time of sleep deprivation is 4 days. I had to work long days and couldn't sleep at all.
After that I got sent home and forced to rest. I think I slept about 17 hours a day for about 2 days.

Longest time I went without sleep was... 80 hours? I was cutting weight for wrestling (had to cut 25 in 20 days and the last 3 days I still have 8 pounds to go that I couldn't keep off to save my life, even with just drinking water and eating celery) and I couldn't sleep I was so hungry and in pain. And eventually by the start of the third day my body was numb to the pain and I was pretty much a zombie at school. The fourth day I weighed in at 170.7, ate a banana, threw it up (stomach shrank), wrestled my match, pinned my kid (first match of the season) midway through the second period, couldn't sleep then because of built up adrenaline, went home and ate a handful of potato chips and fell asleep with my head on the kitchen table for 3 hours. I woke up completely rested and couldn't sleep again for another 36 hours I guess because my body wanted to maintain...

Wierd if you ask me...

The longest I stayed up was 24 hours....I usualy get the giggles....a lot of giggles. And then strange random habbits just start from there. They change each time I stay up late....So I can't really give you an idea for the simple reason is I don't really remember myself :ashamed:...

When ever I don't get sleep, I feel extremely sick & sometimes I wish I was dead... although I never get headaches or anything of that nature... Its always stuff like my joints are sore & my muscles are killing me.. Stuff like that!

Hallucination actually happened to me once before, when I pulled an all-nighter studying and went straight to the exam in the morning. On the way back to my car, I thought I saw something or whatever was weird, but turned out to be there was nothing moving, not even a noise. lol...

And yes, it usually takes me about 2-3 days to recover from a bad sleepdeprivation too.