You should not sleep late in the day to go to school because it will make you wake up late. If you wake up late, you may be able to prepare simple yet comfortable to eat at school won't have time to eat rice.
You should not have to go to sleep late in the day. It will keep you up late. If you wake up You may prepare a box lunch to eat at school. Do not waste time eating.
You should not stay up late in the day to go to school. Because it will make you too late. If you are late, you may have lunch go to school, will not waste time to eat.