Only enter a numerical value A student requires 8 hours of sleep a night to feel both mentally alert and physically well-rested. However, the student consistently sleeps only 5 hours per night on the weeknights (5 out of the 7 nights a week). The student does sleep in on the weekends, sleeping 10 hours a night on those two weekend nights. What is the student's weekly sleep deficit? Calculate the student's total sleep debt over 2 weeks. The student has accumulated hours. hours of sleep debt in 2 weeks.