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Development of sleep patterns in early adolescence
1Centre d'étude du sommeil, Hôpital du Sacré-Coeur, Montréal, Québec, Canada.
Journal of Sleep Research
|April 4, 2001
Summary
Adolescent sleep patterns change with age, with later bedtimes and longer weekend sleep gaps. Puberty and gender influence weekend sleep timing, with girls and more mature adolescents sleeping later.
Area of Science:
- Adolescent Sleep Medicine
- Developmental Psychology
- Chronobiology
Background:
- Sleep patterns undergo significant changes during adolescence.
- Understanding gender and pubertal influences on sleep is crucial for early adolescence.
- Sleep disturbances are common and impact adolescent well-being.
Purpose of the Study:
- To examine developmental changes in sleep patterns related to gender and puberty.
- To assess the prevalence of sleep habits and disturbances in early adolescence.
- To investigate the relationship between sleep patterns, habits, and sleep difficulties.
Main Methods:
- Longitudinal analysis of sleep data from 588 boys and 558 girls aged 10-13 years.
- Mothers completed annual questionnaires on demographics and child's sleep.
- Analysis focused on nocturnal sleep times, bedtimes, weekend/weekday differences, and sleep disturbances.
Main Results:
- Nocturnal sleep time decreased, bedtimes were delayed, and weekend/weekday sleep differences increased with age.
- Girls and pubertal adolescents exhibited later weekend sleep times and longer time in bed (TIB).
- Difficulty falling asleep correlated with later weekend wake times and using a night light.
Conclusions:
- Gender differences in adolescent sleep are likely linked to girls' advanced pubertal status.
- Puberty may increase the physiological need for sleep, despite overall reductions in sleep duration.
- Weekend sleep extension and delayed schedules in early adolescence are associated with sleep onset difficulties.