Sleep program boosts college grades, meets seven-hour target
A set of field experiments with 1,149 college students found that nudging students to sleep seven hours on weeknights—via Fitbit monitoring, personalized reminders, and small financial incentives—not only increases sleep but also causally improves grades, with benefits carrying into the next semester, a result described as the first real-world evidence of sleep directly boosting academic performance in the Journal of Political Economy. Led by health economist Osea Giuntella, the study addresses prior correlational findings and suggests universities can boost performance with simple, low-cost sleep interventions.