This research examines the relationship of sleep duration with positive attitudes and academic achievement, and explores how daytime tiredness, resilience, and school start times influence these relationships. When compared to students that slept more than 8 hours, students that reported sleeping less than 8 hours per night were associated with lower school grades, more tiredness, less positive attitudes, and less resilience. Students that had a later school start time of a modest 20 minutes reported better functioning and more sleep. This research further emphasizes that even a small adjustment in the direction of later school start times is beneficial for student success.
Source: Journal of Adolescence https://www-sciencedirect-com.ezproxy1.lib.asu.edu/science/article/pii/S0140197112001832
Perkinson-Gloor, N., Lemola, S., & Grob, A. (2013). Sleep duration, positive attitude toward life, and academic achievement: The role of daytime tiredness, behavioral persistence, and school start times. Journal of Adolescence,36(2), 311-318. doi:10.1016/j.adolescence.2012.11.008