Students generally have a very busy schedule with a heavy work load. Sleep depravation may cause a student to neglect his or her studies.
Students who have generally very busy schedules often go to bed later than usual because they may need more time to finish their assignments. This may cause students to get less sleep than the amount they need.
Early mornings are especially difficult for students who did not acquire a significant amount of sleep. Those who need more rest are unable to sleep longer and are forced to wake up tired.