I’m starting to notice that people either love it or hate it, there seems to be no in between. I personally liked staying up for so long. To me it was like a science experiment where I was the testing mouse.
One thing I definitely noticed though is that there is like a wall at the 24 hour mark. I was tired until I watched the sunrise at the 24 hour mark, then suddenly I had energy again and didn’t feel tired for the rest of the time I was awake.
No, in my opinion it’s not “the 24th hour” (or “the Nth hour”) that matters for your getting to suddenly feel fresh. It’s the sunrise. Something beautiful and intimately touching sweeps the fatigue away. A view, a song, somebody’s words to you.
(Apart from that, they say that sungazing (gazing, but only at sunsets and sunrises, not the period in-between) is a practice which can energize a lot, even replace food or sleep to some extent).
In my office we listen to the radio all day long while working. Early in the morning I have a sleepy fierce look on my face - until the moment some lovely song enters my ears. 
…or an interesting topic starts being discussed among us…or a surprise happens.
A few seconds of pure joy - and no desire to sleep for the rest of the day. (Note: -----that’s after 1 or 2 sleepless nights. My record: about 4 days. I can’t get asleep before 2 a.m. and I usually surf the net until that time. Getting up: 6.30 a.m. Some other days - when I work second shift: 12 p.m. Compensation). After each 3 hours of night sleep I move and act mechanically until something interesting arrives to enliven me. I avoid short (for 2-3 hours) sleeping during the daytime (the so called naps). This feels nasty to me. (The 5-minutes’ restorative ones with just closed eyes and full turn-off though are ok).
It’s very pleasant to go to bed at 4 or 5 or 6 a.m.
The longest I’ve gone is about 2 days but i’m not very sure of the actual time. I’ve never had ny wierd affects from it though. On the wikipedia sleep deprevation it says it might give you lucid dreams when you eventually go to sleep hmmm… Lol it also says sleep deprevation can cause sleep XD.
Somewhere around 36 hours. I’m going to break it though. Starting now. This sounds like it might be fun.
I messed up, accidentally fell asleep around 20 hour mark. I’m going to try again, I got a little too comfortable I guess.
I said 74-98. I used to forget to sleep sometimes.
im at 21 hours so far.
I Like sleeping and I like being awake, What I dont like is waking up.
My longest is having to wake up at 07:00 on Thursday and going to sleep just before midnight on friday (41 hours?).
I had to do this every week during term time at Uni to keep up with work.
Getting no sleep can make me wonderfully delirious. Once I laughed for an entire school day with my friend using “bitches” as a pronoun. “Bitches need to learn how to walk!” It was HILARIOUS because we were so darn tired and delirious.
Sleep deprivation makes the world funnier.
But sometimes it conflicts with my liking sleep so much. 
I’ve broken my record! Stayed up from seven or eight am in the morning, did not go to sleep until 11am next day. That is, what…27 hours! That moves me up a category, doesn’t it? 
And I only slept for two hours, then I was up again.
i was up for 40 hours, i heard feet scampering on the roof and saw rain inside
My record is 2 weeks. I sh*t you not. I ended up having a psychotic episode and having to goto hospital and get some liquid lithium to make me sleep but thats a whole nother story…
wow. erm… congrats?
yeah you start getting pretty delusional around that stage…
my sleeping record is also pretty long… everyday i will sleep for a good 12 hours, but i think the longest i’ve slept is about 36 hours. Thats with a couple of small breaks in between though… i.e. toilet, food, drink, etc.
I find that hard to believe, as the official world record is 11 days.
Also… lithium is a reactive solid at all temperatures up to at least 100’C. Therefore the liquid metal would be very hot and very reactive. Surely you mean something else?
Otherwise, you win.
Until now, it was about 30 hours.
I haven’t been able to truly sleep for the past three days…
Stupid stressful school coming back to haunt me when I want to sleep…
grumble
I’m not one to pull all-nighters (even when pumped full of caffeine)… I get drowsy at 3am and usually pass out around 4am.
I LIKE MY SLEEP.
hah! well i guess i just topped the record…
although i can’t prove it im sure i could do it again (not that i want to)… its honestly not that hard (well for me anyway)… you get to a point where your past being tired… you no longer feel tired its like your mind becomes really switched on, like its been overclocked. I felt like I had mind-over-matter, and i did things that you would call ESP abilities, although it could have been coincidence or just plain delusion/hallucination I truly think it was mind-over-matter becoz thats exactly how i felt by that stage.
sorry i meant Valium… they sound so similar lol.
I knew we had an old one that had a poll 
merged them together so you can use the existing poll 
My record is 38 hours.
As of right now, I’ve been awake for 35 hours. I’m trying to break my record.
essentially 24 - 30 something
twice i have stayed up all night driving about 12 hours, then staying up all the day, arriving at destination in the morning,
it was fun, and the destination was a meditation retreat so i got to sleep and be refreshed in little spurts, but inevitably i would crash the day after fairly huge !
although i think the first or second time i may have gotten close to 48 without sleep sans meditation
i think my longest was 37 hours…Obama had won the election- I couldnt sleep cuz i was so excited lol. I crashed reeeeally bad after that. Felt like the mother-of-all-hangovers. 