What to Do the Night Before an Exam (and Morning Of)

The night before an exam is not the time for heroic revision. It is the time to set yourself up so that tomorrow you walk into the exam hall calm, rested, and ready. What you do in the final 18 hours before a paper matters more than most students realise — not because of last-minute cramming, but because of sleep, preparation, and routine.

This guide covers exactly what to do from the evening before to the moment you open the paper.

The Evening Before

Do a Light Review — Then Stop

A brief, focused review of key material is fine. Fifteen to twenty minutes maximum. Flick through your summary notes, review your flashcard deck, or read over a few key formulae or quotations. The goal is gentle reinforcement, not deep learning.

What you should not do:

• Start revising a new topic. If you do not know it by now, 30 minutes tonight will not fix that — and encountering unfamiliar material this close to the exam will spike your anxiety.
• Do a full past paper. This is revision, not a dress rehearsal. You have already done that work.
• Revise for more than 30 minutes. Anything beyond a light review is counterproductive. Your brain needs time to wind down before sleep.

Set a specific time to stop — say, 8pm or 9pm — and stick to it.

Prepare Everything You Need

Anxiety often comes from uncertainty. Remove as much uncertainty as possible by preparing everything tonight.

Pack your bag with:

• Black pens (at least two, ideally three — pens fail at the worst possible time)
• Pencils, a rubber, and a ruler
• A calculator (if allowed), with fresh batteries
• Your student ID or exam entry slip (if required by your school)
• A clear pencil case or plastic bag (many exam halls require transparent containers)
• A bottle of water (with the label removed if your school requires it)
• A watch (phones are not allowed in exam halls, and not every room has a visible clock)

Check the logistics:

• What time does the exam start? What time do the doors open?
• Where is the exam being held? If it is in a different location from normal, know how to get there.
• How are you getting there? If you are catching a bus or getting a lift, confirm the plan.

Lay out the clothes you will wear. This sounds trivial, but eliminating small decisions in the morning frees up mental energy for the exam itself.

Eat a Proper Evening Meal

Your brain consumes roughly 20 percent of your body's energy. Running on an empty stomach or junk food impairs concentration and recall.

Eat a balanced meal with protein, complex carbohydrates, and vegetables. Pasta, rice dishes, grilled chicken, fish — nothing exotic, nothing heavy. Avoid excessive sugar and caffeine in the evening, as both can disrupt your sleep.

Drink enough water throughout the evening. Dehydration impairs cognitive function more than most people realise.

Wind Down Before Bed

Your brain cannot switch from revision mode to sleep mode instantly. Give it at least 30 to 60 minutes of wind-down time between your last revision session and getting into bed.

Good wind-down activities:

• Watch something light on television (not something stressful or gripping)
• Listen to music or a podcast
• Read a book (not a revision guide)
• Have a shower or bath
• Talk to your family

Avoid:

• Social media. Scrolling through feeds where other students are discussing their revision will either make you anxious or keep you awake far longer than you intended.
• Messaging friends about the exam. Comparing preparation with others is one of the fastest ways to escalate anxiety.
• Screens in bed. The blue light suppresses melatonin, and the content keeps your brain active.

Sleep

This is the single most important thing you do tonight. Sleep is when your brain consolidates the memories you formed during revision. A full night of sleep genuinely improves your recall the next day — it is not just about feeling rested.

Aim for eight to nine hours. Set your alarm, put your phone across the room (so you cannot scroll), and get into bed at a reasonable time.

If you struggle to fall asleep:

• Do not lie in bed watching the clock. This trains your brain to associate bed with wakefulness.
• Try the 4-7-8 breathing technique: breathe in for 4 seconds, hold for 7, breathe out for 8. Repeat until you feel drowsy.
• If you are still awake after 20 minutes, get up, go to another room, and do something boring for 10 to 15 minutes. Then try again.
• Remind yourself: one night of imperfect sleep will not ruin your exam. Students perform well on slightly less sleep all the time. The worst thing you can do is lie there stressing about not sleeping.

The Morning Of

Wake Up With Time to Spare

Set your alarm early enough that you are not rushing. Rushing produces cortisol, which is the last thing you need before an exam. A calm, unhurried morning sets the tone for the rest of the day.

Give yourself at least an hour between waking up and leaving the house. More if you are someone who takes a while to feel alert.

Eat Breakfast

Do not skip this. Your brain is about to work hard for one to three hours. It needs fuel.

Good exam-day breakfasts:

• Porridge with fruit
• Toast with eggs
• Cereal with milk and a banana
• Yoghurt with granola

The key is slow-release energy — complex carbohydrates and protein. Avoid sugary cereals or pastries that give you a spike followed by a crash halfway through the paper.

If you genuinely cannot eat when you are nervous, have a banana and a glass of water at minimum. Something is better than nothing.

Brief Review (Optional)

If it helps you feel prepared, spend ten minutes flicking through your summary notes or key flashcards. Keep it to material you already know — this is about building confidence, not learning.

If reviewing makes you more anxious rather than less, skip it entirely. Trust the revision you have already done.

Light Exercise

Even ten minutes of physical activity makes a measurable difference to your mental state. A brisk walk to school, a few minutes of stretching, or a short jog will reduce cortisol, increase blood flow to your brain, and improve your alertness.

You do not need a full workout. Just move your body before you sit still for two hours.

Arrive Early, But Not Too Early

Get to the exam venue with time to spare — around 15 to 20 minutes before doors open. This avoids the stress of rushing, gives you time to find your seat, and lets you settle.

Arriving too early — an hour before, say — gives you time to stand around absorbing other people's anxiety. If you arrive early, find a quiet spot away from the main crowd.

Before You Go In

Do:

• Go to the toilet. A full bladder is distracting and you may not be allowed to leave during the exam.
• Take three slow, deep breaths. Exhale longer than you inhale. This activates your parasympathetic nervous system and physically calms you down.
• Remind yourself of what you know, not what you do not know. You have revised. You have done past papers. You are prepared.

Do not:

• Ask other students what they revised. If they mention something you did not cover, it will panic you. Their revision is irrelevant to your performance.
• Cram in the corridor. Trying to memorise a final fact while standing in a queue is stressful, ineffective, and will not earn you marks.
• Look at your phone for distraction. Most schools require phones to be switched off and stored before entering the hall anyway.

The First Five Minutes of the Exam

When you open the paper, do not start writing immediately. Take two minutes to read through the entire paper (or at least the section you are about to answer). This serves three purposes:

1. It prevents surprises. You know what is coming, which reduces anxiety.
2. It activates your memory. Reading the questions primes your brain to retrieve relevant knowledge, even before you consciously start answering.
3. It helps with time planning. You can decide which questions to tackle first, which to leave until later, and how to allocate your time.

If you feel a wave of anxiety when you open the paper, pause. Take three slow breaths. Read the first question again, slowly. Start with what you know. The act of writing something — anything — breaks the paralysis and builds momentum.

Between Exams

If you have two exams in one day, or exams on consecutive days:

• Do not dissect the paper you just sat. It is done. Analysing your answers with friends will either make you feel worse (if you spot a mistake) or give you false confidence (if you agree on an answer that turns out to be wrong). Neither helps with the next exam.
• Eat and drink. Your body just spent a lot of energy. Refuel.
• Do a light review for the next paper, if there is time. Keep it brief and focused.
• Walk. Even five minutes of movement between exams helps reset your mental state.

This Is What You Have Trained For

The night before and morning of an exam are not about squeezing in more revision. They are about arriving in the best possible state to use the knowledge you already have. Sleep, food, preparation, calm — these are the things that allow your brain to perform at its best when it matters most.

You have done the work. Now give yourself the best chance to show it.