Morningness-eveningness and sleep habits among adolescents: age and gender differences.

Jul 4, 2012Psicothema

Morning and evening preferences and sleep habits in teenagers: differences by age and gender

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Abstract

A sample of 2,649 adolescents aged 12 to 16 showed notable trends in sleep habits and morningness-eveningness preferences.

Adolescents displayed a greater tendency toward eveningness as they aged.
Girls aged 13 and 14 exhibited higher eveningness compared to their male counterparts.
Older adolescents reported later rising times on weekends, later bedtimes, shorter sleep lengths, and increased social jetlag.
Girls had earlier rising times on weekdays but later times on weekends, along with longer weekend sleep duration.
Evening-oriented adolescents claimed shorter sleep lengths on weekdays but longer sleep durations on weekends, coupled with greater weekend sleep delays.

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Previous research has indicated the need to use large samples in different cultural contexts in order to clarify age and gender differences on morningness-eveningness and sleep habits. The goal of our research was to study the relationship between morningness-eveningness and sleep habits in a large sample of 2,649 adolescents between 12 and 16 years. The Morningness- Eveningness Scale for Children and an adaptation of the School Sleep Habits Survey measures were used. Results indicated a greater tendency toward eveningness with age and higher eveningness in 13- and 14-year-old girls. Older adolescents claimed later rising time on weekends, later bedtime and shorter sleep length, and greater social jetlag, weekend rise time delay, and weekend bedtime delay. Girls reported earlier rising time on weekdays, later rising time on weekends, longer sleep length on weekends, and greater social jetlag and weekend rising time delay. Lastly, evening oriented adolescents claimed later rising time and bedtime, shorter sleep length on weekdays but longer sleep duration on weekends, and greater social jetlag, weekend rising time delay, and weekend bedtime delay.

Morningness-eveningness and sleep habits among adolescents: age and gender differences.

Abstract

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