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Updated: Jun 1, 2026

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
Published on: August 8, 2019
[Sleep, work, and study: sleep duration in working and non-working students].
Erico Felden Pereira1, Maria Perpeto Socorro Leite Bernardo, Vânia D'Almeida
1Departamento de Educação Física, Universidade Federal do Paraná, Curitiba, Brasil. ericofelden@gmail.com
Working students, particularly older adolescents and those from lower socioeconomic backgrounds, experience significantly shorter sleep durations. This highlights a critical issue for student well-being and academic performance.
Area of Science:
- Sleep Medicine
- Adolescent Health
- Sociology of Education
Context:
- Investigated sleep-wake cycles in 863 teenage students in São Paulo, Brazil.
- Examined factors associated with sleep duration among working and non-working students.
- Highlighted the prevalence of short sleep duration in a significant portion of the student population.
Purpose:
- To determine the sleep duration of working versus non-working students.
- To identify factors associated with short sleep duration in adolescents.
- To compare sleep patterns between different student demographics.
Summary:
- 18.4% of students were employed, with 52% of working students reporting less than eight hours of sleep nightly.
- Short sleep duration was more prevalent in working students across both genders.
- Factors such as older age, lower socioeconomic status, and afternoon school schedules were linked to shorter sleep durations in working students.
Impact:
- Findings underscore the negative impact of work on adolescent sleep health.
- Identifies vulnerable student subgroups requiring targeted interventions.
- Provides data for developing policies to support student well-being and academic success.
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