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Sleep in older adolescents. Results from a large cross‐sectional, population‐based study.

Authors :
Saxvig, Ingvild West
Bjorvatn, Bjørn
Hysing, Mari
Sivertsen, Børge
Gradisar, Michael
Pallesen, Ståle
Source :
Journal of Sleep Research. Aug2021, Vol. 30 Issue 4, p1-9. 9p.
Publication Year :
2021

Abstract

The aim of the present study was to describe sleep patterns in a large and representative sample of Norwegian adolescents. The sample included 4,010 first‐year high school students, aged 16–17 years (54% female), who completed a web‐based survey on sleep patterns. The process of going to sleep was addressed as a two‐step sequence of (a) shuteye latency (interval from bedtime to shuteye time) and (b) sleep onset latency (interval from shuteye time to sleep onset). Results showed that 84.8% of the adolescents failed to obtain the recommended amount of sleep (8+ h) on schooldays, and 49.4% obtained less than 7 h. Mean bedtime on schooldays was 10:33 PM, with rise time 8:19 h later (time in bed). The adolescents reported long school‐day shuteye latency (43 min), limiting sleep opportunity to 7:36 h. Sleep onset latency was 32 min and mean school‐day sleep duration was only 6:43 h. On free days, 26.3% of the adolescents obtained less than 8 h of sleep, and 11.7% obtained less than 7 h. Mean bedtime was 00:33 AM, time in bed was 10:35 h, shuteye latency was 39 min and sleep onset latency was 24 min. Mean free‐day sleep duration was 8:38 h. There were sex differences in several sleep parameters, including shuteye latency. The results indicate that the majority of Norwegian adolescents fail to obtain the recommended amount of sleep (8+ h) on schooldays. Long shuteye latency appears to be a main driver for short school‐day sleep duration in adolescents. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09621105
Volume :
30
Issue :
4
Database :
Academic Search Index
Journal :
Journal of Sleep Research
Publication Type :
Academic Journal
Accession number :
151230510
Full Text :
https://doi.org/10.1111/jsr.13263