The Eight Hour Sleep Challenge During Final Exams Week

Many students and educators know that sleep is important to learning, yet there exists a gap between their knowledge and behavior. For example, fewer than 10% of students sleep eight hours before final exams. In the context of two undergraduate courses on sleep (N=34), students could earn extra credit if they averaged ≥8.0 hours of sleep during final exams week. Sleep/wake patterns were monitored objectively using actigraphy. The 24 students who opted-in to the challenge averaged 8.5 hours of sleep (n=17 succeeded). Short sleep (≤6.9 hours) occurred on only 11% of nights, significantly less than early-semester baseline (51%) and comparison group (65%) data. On the final exam, students who slept ≥8.0 hours performed better than students who opted-out or slept ≤7.9 hours, even after controlling for pre-final grades. The Eight Hour Sleep Challenge provides proof of principle that many students can maintain optimal sleep while studying, without sacrificing test performance.