Beyond rest: the role of sleep in adolescent well-being and academic performance

Authors

  • Marta Raimundo Aventura Social- Associação, Lisboa, Portugal | Universidade Lusófona, Lisboa, Portugal | HEI-Lab Digital Human-environment Interaction Lab, Lisboa, Portugal | CENC – Centro de Medicina do Sono, Lisboa, Portugal https://orcid.org/0000-0002-9381-9271
  • Ana Cerqueira Aventura Social- Associação, Lisboa, Portugal | Universidade Lusófona, Lisboa, Portugal | HEI-Lab Digital Human-environment Interaction Lab, Lisboa, Portugal | Instituto de Saúde Ambiental (ISAMB) da Universidade de Lisboa, Lisboa, Portugal | Católica Research Centre for Psychological, Family and Social Wellbeing, Lisboa, Portugal https://orcid.org/0000-0001-9883-0210
  • Tânia Gaspar Aventura Social- Associação, Lisboa, Portugal | Universidade Lusófona, Lisboa, Portugal | HEI-Lab Digital Human-environment Interaction Lab, Lisboa, Portugal | CENC – Centro de Medicina do Sono, Lisboa, Portugal | Instituto de Saúde Ambiental (ISAMB) da Universidade de Lisboa, Lisboa, Portugal https://orcid.org/0000-0002-9616-0441
  • Teresa Paiva CENC – Centro de Medicina do Sono, Lisboa, Portugal | Instituto de Saúde Ambiental (ISAMB) da Universidade de Lisboa, Lisboa, Portugal | Comprehensive Health Research Center (CHRC), Lisboa, Portugal https://orcid.org/0000-0002-7937-7841
  • Nuno Rodrigues Direção-Geral de Estatísticas da Educação e Ciência, Lisboa, Portugal https://orcid.org/0000-0002-5497-9870
  • Margarida Matos Aventura Social- Associação, Lisboa, Portugal | CENC – Centro de Medicina do Sono, Lisboa, Portugal | Instituto de Saúde Ambiental (ISAMB) da Universidade de Lisboa, Lisboa, Portugal | Católica Research Centre for Psychological, Family and Social Wellbeing, Lisboa, Portugal | APPsyCI – Applied Psychology Research Center Capabilities & Inclusion, Lisboa, Portugal https://orcid.org/0000-0003-2114-2350

DOI:

https://doi.org/10.29352/mill0229.45082

Keywords:

sleep; well-being; mental health; symptoms; adolescents

Abstract

Introduction: Sleep plays a vital role in the physical and mental health, well-being, and academic performance of adolescents.

Objective: Examine the association between sleep duration, health, well-being, and academic performance among Portuguese adolescents.

Methods: Data were analyzed from two independent samples collected in 2022 and 2024 as part of the Psychological Health and Well-being Observatory of the Directorate-General for Education and Science Statistics (OSPBE/DGEEC). Independent samples t-tests and Pearson's chi-square test were used to analyze gender differences, as well as analysis of variance (ANOVA) to examine differences in sleep duration.

Results: A total of 7,306 students participated in the study, 4,295 in 2022 and 3,011 in 2024. In 2022, 52.2% of participants were female, with a mean age of 13.40 years (SD = 2.44). In 2024, the proportion of female participants decreased to 50.5%, and the mean age rose to 13.64 years (SD = 2.53). Statistically significant differences were observed based on gender, academic performance, and sleep duration. Girls, adolescents with lower academic performance, and those who slept fewer than eight hours per night exhibited poorer indicators of well-being and mental health.

Conclusion: These findings underscore the importance of equipping adolescents with the knowledge and resources necessary to adopt health-promoting behaviors and reduce potential risk behaviors associated with insufficient sleep.

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Published

2026-03-26

How to Cite

Raimundo, M., Cerqueira, A., Gaspar, T., Paiva, T., Rodrigues, N., & Matos, M. (2026). Beyond rest: the role of sleep in adolescent well-being and academic performance . Millenium - Journal of Education, Technologies, and Health, 2(29), e45082. https://doi.org/10.29352/mill0229.45082

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Section

Education and Social Development Sciences