Ever got the feeling that you are suddenly forgetting everything you have learned right before the exam? It was probably because you stayed up too late the night before the examination. A good rest before the exam is essential in order to remain alert and focused during the exam. While it may be very tempting at 3 am in the night before the exam to study one final chapter , fact is you would probably be doing yourself more harm than good. Sleep early and rise fresh on the exam day.