First don’t ever get yourself into that position by planning your time properly. As you have ended up in that position the best way to proceed is to spend an hour making a schedule and sticking to it religiously.
So first off you need 8hrs sleep each night otherwise your mind will wander and you wont be able to focus properly so your original 72 hours is down to 48 hours of work time.
Take off eating time and sundry walking to the library etc that is 2 hours a day minimum. so your now have 42 hours.
With 4 essays that is 10.25 hours per essay. With research your top writing speed will be around 50 wpm realistically bank on a maximum of 8000 words in one day so you have the ability to write 24000 words in three days if all you do is write. You also need to do research. At this point if your essays are unstarted at all then you wont get them done if they are over 3000 words and even then 3000 words is pushing it.
Break up each essay into the constituent parts and target your research. Look for references that can be used across multiple papers as well. This will save research time. Spend half of your time researching and the other half writing. 5 hours research for an essay is next to nothing so be super focused. Go for specific quotes and hit as many book in the time as possible. If you can find a podcast about the themes of the subject listen to that when you are walking too and from places or when you are eating or showering etc. all information you can pull in do.
Above all though block all social media and don’t float around the internet. Use it only for direct research and then only for the bare essentials if you can. By this I mean grabbing the list of references off of Wikipedia to make your life easier int he library.
As you haven’t given any details such as essay length subject matter or level of academia there is little extra advice that can be given apart from the above.
If those trips down to the demos in Westminster have left you behind schedule for your end-of-term assignment, you may well be forced to write in the small hours this week. Here's how to pull it off safely and successfully.
12am: Get as far away from your bed as possible
Before you begin, avoid warmth and soft furnishings. Propped up on pillows in the glow of a laptop may feel like savvy ergonomics, but your keyboard will start to look pillow-like by midnight, and 418 pages of the word "gf64444444444444444444" will detract from the force of your argument. You could try the kitchen. Or Krakow. But your industrially lit 24-hour campus library should do the trick.
12:25am: Take a catnap
Thomas Edison used to catnap through the night with a steel ball in his hand. As he relaxed and the ball dropped, he would wake up, usually with fresh ideas. "Caffeine and a short nap make a very effective combination," says Jim Horne, director of the Loughborough Sleep Research Centre. "Have the coffee first. This takes about 20 minutes to work, so take a 15-minute nap. Use an alarm to wake up and avoid deep sleep kicking in. Do this twice throughout the night."
12.56am: Reduce your internet options
Temporarily block Twitter, Spotify, Group Hug, YouTube, 4od and anything else that distracts you. Constantly updating your word count on Facebook may feel like fun, but to everyone else you'll look like you're constantly updating your word count on Facebook.
1-3am: Now write your essay. No, really
You've widened your margins, subtly enlarged your font and filled your bibliography with references of such profound obscurity that no one will notice you're missing 3,000 words. It's time to brainstorm, outline, carve words, followed by more words, into that milk-white oblivion that taunts you. Speed-read articles. Key-word Google Books. Remember texts you love and draw comparisons. Reword. Expound. Invent. Neologise. Get excited. Find a problem you can relish and keep writing. While others flit from point to point, your impassioned and meticulous analysis of a single contention is music to a marker's eyes.
3-5am: Get lost in your analysis, your characters, your world Write like you're trying to convince the most stubborn grammarian about truth, or heartless alien invaders about love. Don't overload with examples – be creative with the ones you have. Detail will save your life, but don't waste time perfecting sentences – get the bulk down first and clean up later. "The progress of any writer," said Ted Hughes, "is marked by those moments when he manages to outwit his own inner police system." Outwit your own inner police system. Expect progress. Ted says so.
5:01am: Don't cheat
It's about now that websites such as easyessay.co.uk will start to look tempting. And you may sleep easier knowing that a dubiously accredited Italian yoga instructor is writing about Joyce instead of you. But the guilt will keep you up between now and results day. And you'll toss and turn the night before graduation, job interviews, promotions, dinner parties, children's birthdays, family funerals . . . you get the idea.
5.17am: Don't die
Sounds obvious, but dying at your computer is definitely trending. And however uncool it may seem to "pass on" during a five-day stint at World of Warcraft, it will be much more embarrassing to die explaining perspectivism to no one in particular. So be careful. Stay hydrated. Blink occasionally. And keep writing.
5.45am: Eat something simple
"There are no foods that are particularly good at promoting alertness," says Horne. "But avoid heavy and fatty meals in the small hours. Avoid very sugary drinks that don't contain caffeine, too. Sugar is not very effective in combating sleepiness." Fun fact: an apple provides you with more energy than a cup of coffee. Now stick the kettle on.
5.46am: Delight in being a piece of living research
If you happen to be "fatigue resistant" you should now be enjoying the enhanced concentration, creative upwelling and euphoric oneness that sleep deprivation can bring. If not, try talking yourself into it. "Conversation keeps you awake," says Horne. "So talk to a friend or even to yourself – no one will hear you."
6am: Console yourself with lists of writers who stuck it out
Robert Frost was acquainted with the night. Dumas, Kafka, Dickens, Coleridge, Sartre, Poe and Breton night-walked and trance-wrote their way to literary distinction. John and Paul wrote A Hard Day's Night in the small hours. Herman the Recluse, atoning for broken monastic vows, is said to have written the Codex Gigas on 320 sheets of calfskin during a single night in 1229. True, he'd sold his soul to the Devil, but you're missing out on a live Twitter feed, so it's swings and roundabouts.
7am: Remember – art is never finished, only abandoned
Once you accept there's no more you can do, print it off and get to the submissions office quick. Horne: "You're not fit to drive if you've had less than five hours sleep, so don't risk it. Grab some exercise." Pop it in with the breeziness that comes from being top of your marker's pile. Back home, unblock Facebook and start buffering The Inbetweeners. And then sleep. Get as near to your bed as you can. Euphoric oneness doesn't come close.
Matt Shoard teaches creative writing at the University of Kent.