Studying at 2 or 3 am is a good idea for those who have more brain power and higher energy levels late at night. In general, nocturnal activity is good for night owls, who tend to be more alert and energetic at night. Having enough bright light in the room where you plan to practice all night can help you avoid sleepiness, better focus on what you need to study, and answer questions about how to study late a night. To know how to work out all night, keep your room bright and well-lit to avoid situations that make you think you're dreaming.
If you really want to stay up all night, make sure you work at your desk or in a position that doesn't make you sleepy. You may be tempted to stay up all night and cram as much as you can, but by all means get enough sleep the night before. Even if you plan to stay up all night, chances are you'll snooze, so it's worth setting an alarm just in case. Don't panic in the middle of the night and try to cram everything into a heap; you might as well go to bed instead.
If you try to cram all the information the night before your exam, your brain will be overloaded and you have to work hard to refocus on your studies. When you study with a clear mind in the morning, it's much easier for you to remember things, but when you're trying to increase your afternoon study time and think about how to study through the night, sleep becomes an unavoidable problem. If you plan on exercising in the morning, go to bed on time so you don't feel like a zombie in the morning. If you feel most productive at night or when you have time to study, don't panic.
Start with a 10-minute break every hour and work twice an hour late at night (you need more frequent breaks to combat sleep as night falls) to restore waning focus. Set a goal to get yourself at least a few hours of sleep at night. If you are very tired, set a timer and take a night nap. If you've gotten the recommended seven to nine hours of sleep per night, you won't feel as bad after a night of lost sleep. 
It's understandable if you can't get enough sleep at night during boarding exams. Sleeping 7 to 8 hours every night is essential to stay healthy and stay awake while studying website. Maintaining a good sleep habit is essential to keeping you awake and learning. Practice in a brightly lit area, but set your computer to medium brightness and try to focus on a distant subject every 20-30 minutes.
That's why it's also good to repeat a few days before the test, not just the night before, so you can turn the material around and review everything multiple times in a few separate sessions.
