Abstract

This study examines the relationship between sleep duration and academic performance among high school students. Through a survey of 200 students across all grade levels, we found a significant positive correlation between consistent sleep schedules and GPA.

Methodology

Participants completed a two-week sleep diary and granted access to their current semester GPA. Sleep quality was measured using self-reported metrics including time to fall asleep, number of nighttime awakenings, and perceived restfulness.

Key Findings

Students who reported sleeping 7-9 hours consistently had an average GPA of 3.4, compared to 2.8 for those sleeping fewer than 6 hours. Perhaps more surprisingly, consistency mattered more than total hours — students with regular sleep schedules outperformed those with irregular patterns, even when total sleep time was similar.

Conclusion

Our findings suggest that schools should consider later start times and educate students about sleep hygiene. The data supports what sleep scientists have long argued: well-rested students are better learners.