If you are a good student then it is necessary for you to enjoy a good sleep. If you don’t enjoy a good sleep, then you will not be able to concentrate on your studies effectively. In this way, when you are going to make a timetable for studies, then you should keep a good time for your studies. You should also keep a time for the exercise. You should also eat a good food while studying. If you try to sleep without eating anything then you will not be able to enjoy a good sleep. In this regard, you should take a balanced diet when you are going to prepare for your exams.