School-Based Sleep Interventions Show Mixed Results, Highlighting Need for Comprehensive Approaches
School-based sleep interventions for adolescents have shown limited effectiveness in improving sleep outcomes, according to a 2024 review of 21 studies. The analysis, led by Gaskin et al., found that classroom-based sleep education programs had minimal impact on sleep duration or quality, with many studies suffering from methodological flaws. However, a 2025 Belgian study reported more promising results after implementing a longer, student-driven intervention, suggesting that future programs may need to prioritize sustained engagement and multi-component strategies.
2024 Review: Limited Impact of Classroom Sleep Education
The 2024 review analyzed 21 school-based sleep interventions conducted between 2011 and 2022, involving over 10,000 children and adolescents across 13 countries. Most programs focused on classroom education about sleep hygiene, with a few incorporating stress management or bright light therapy. Despite these efforts, the review found “minimal to no effect” on objective or subjective sleep measures.
One of the studies included in the review, conducted by Rigney et al. in 2015, involved 296 Australian students aged 12.2 years. The intervention included four weekly lessons and a group project on sleep topics, followed by presentations to parents. While the treatment group showed a 10-minute increase in time in bed compared to controls, the difference was not statistically significant, and no lasting improvements in sleep knowledge or hygiene were observed. The authors concluded that “more comprehensive, intensive, and longer interventions” were needed to achieve meaningful results.
2025 Belgian Study: A New Approach Yields Promising Outcomes
A 2025 study from Belgium took a different approach by involving students in designing and implementing the intervention. Over 16 weeks, participants engaged in activities that addressed sleep barriers, such as reducing screen time before bed and lowering physical activity before bedtime. Follow-up assessments six months later showed improvements in sleep duration, sleep hygiene behaviors, and self-reported sleepiness.
The Belgian researchers credited the program’s success to “student buy-in,” with participants actively contributing to the development of strategies to improve their sleep. At follow-up, the experimental group experienced a 12-minute increase in average sleep duration compared to the control group, whose sleep time declined from baseline. The authors emphasized the importance of student involvement and longer intervention periods, calling for further research to replicate these findings.
Challenges and Recommendations for Future Interventions
The 2024 review highlighted several limitations in existing school-based sleep programs, including flaws in study design, measurement, data collection, and analysis. Gaskin et al. recommended that future studies incorporate multiple components—including school administrators, teachers, and parents—while extending intervention periods.
Looking Ahead: The Path to Effective Sleep Interventions
The findings from the 2025 Belgian study suggest that student-led, long-term interventions could be a promising model for improving adolescent sleep. However, larger-scale trials are needed to confirm these results and identify best practices.
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