Breakpoints of time in bed, midpoint of sleep, and social jetlag from infancy to early adulthood - PubMed (original) (raw)
Breakpoints of time in bed, midpoint of sleep, and social jetlag from infancy to early adulthood
Christoph Randler et al. Sleep Med. 2019 May.
Abstract
Objectives: The present study investigated sleep duration and sleep timing from infancy to early adulthood.
Methods: A cross-sectional survey study of N = 18,323 participants (9004 female) from 0 to 25 years (M = 12.36; SD = 5.76) from kindergartens, schools and universities in SW Germany. Participants reported their usual bedtimes and rise times on weekdays/weekends. Time in bed (TIB), the midpoint of sleep, and social jetlag were calculated from these four clock times.
Results: Weekday rise times were progressively earlier until the age of 17 years, while weekend rise times contrarily were later. As a consequence, TIB during the week was progressively shorter until the age of 16 years. The midpoint of sleep (MSFsc) was increasingly later until it reached a plateau at 17 years. Social jetlag increased until 16 years to 3:18 h. Gender differences were small for sleep duration/chronotype with males sleeping less and later than girls and non-significant for social jetlag. A regression with two breakpoints explained variability in sleep duration and sleep timing by age (45-61% explained variance) better than a regression with one breakpoint (44-59%), linear regression (25-54%) or polynomial regression (43-60%).
Conclusions: The age around 16-17 years can be considered a remarkable breakpoint when sleep behavior significantly changes back towards slightly longer sleep, less socially jetlagged behavior, and the increase in eveningness is then stopped but not reversed. A somewhat softer breakpoint is identified around 5-7 years when the rapid changes in sleep behavior initiate.
Keywords: Chronobiology; Circadian rhythms; Nonlinear analysis; Segmented regression; Sleep deprivation; Time in bed.
Copyright © 2019 Elsevier B.V. All rights reserved.
Similar articles
- Associations of chronotype with social jetlag and behavioral problems in preschool children.
Doi Y, Ishihara K, Uchiyama M. Doi Y, et al. Chronobiol Int. 2015;32(8):1101-8. doi: 10.3109/07420528.2015.1063503. Epub 2015 Aug 28. Chronobiol Int. 2015. PMID: 26317786 - The influence of school time on sleep patterns of children and adolescents.
Carissimi A, Dresch F, Martins AC, Levandovski RM, Adan A, Natale V, Martoni M, Hidalgo MP. Carissimi A, et al. Sleep Med. 2016 Mar;19:33-9. doi: 10.1016/j.sleep.2015.09.024. Epub 2015 Nov 12. Sleep Med. 2016. PMID: 27198945 - Chronotype, social jetlag and sleep debt are associated with dietary intake among Brazilian undergraduate students.
Silva CM, Mota MC, Miranda MT, Paim SL, Waterhouse J, Crispim CA. Silva CM, et al. Chronobiol Int. 2016;33(6):740-8. doi: 10.3109/07420528.2016.1167712. Epub 2016 Apr 12. Chronobiol Int. 2016. PMID: 27070173 - Social Jetlag and Related Risks for Human Health: A Timely Review.
Caliandro R, Streng AA, van Kerkhof LWM, van der Horst GTJ, Chaves I. Caliandro R, et al. Nutrients. 2021 Dec 18;13(12):4543. doi: 10.3390/nu13124543. Nutrients. 2021. PMID: 34960096 Free PMC article. Review. - A developmental perspective on sleep consistency: Preschool age through emerging adulthood.
Nicholson L, Bohnert AM, Crowley SJ. Nicholson L, et al. Behav Sleep Med. 2023 Jan-Feb;21(1):97-116. doi: 10.1080/15402002.2021.2024192. Epub 2022 Jan 11. Behav Sleep Med. 2023. PMID: 35014925 Review.
Cited by
- Sleep deprivation among adolescents in urban and indigenous-rural Mexican communities.
Silva-Caballero A, Ball HL, Kramer KL, Bentley GR. Silva-Caballero A, et al. Sci Rep. 2023 Jan 19;13(1):1058. doi: 10.1038/s41598-023-28330-8. Sci Rep. 2023. PMID: 36658329 Free PMC article. - Association of accelerometry-derived social jetlag and sleep with temperament in children less than 6 years of age.
Giannoumis M, Mok E, Borkhoff CM, Birken CS, Maguire J, Parkin PC, Li P, Constantin E. Giannoumis M, et al. J Clin Sleep Med. 2022 Aug 1;18(8):1993-1999. doi: 10.5664/jcsm.10056. J Clin Sleep Med. 2022. PMID: 35532114 Free PMC article. - Association of sleep timing with all-cause and cardiovascular mortality: the Sleep Heart Health Study and the Osteoporotic Fractures in Men Study.
Ma M, Fan Y, Peng Y, Ma Q, Jia M, Qi Z, Yang J, Wang W, Ma X, Yan B. Ma M, et al. J Clin Sleep Med. 2024 Apr 1;20(4):545-553. doi: 10.5664/jcsm.10926. J Clin Sleep Med. 2024. PMID: 38561941 - Cardiometabolic risk factors and social jetlag in university professors.
Galeno DML, Peixoto HJA, Carneiro BTS, Leocadio-Miguel MA. Galeno DML, et al. Braz J Med Biol Res. 2023 Jun 30;56:e12539. doi: 10.1590/1414-431X2023e12539. eCollection 2023. Braz J Med Biol Res. 2023. PMID: 37403885 Free PMC article. - Association of Time in Bed, Social Jetlag, and Sleep Disturbances With Cognitive Performance in Children With ADHD.
Qu X, Kalb LG, Holingue C, Rojo-Wissar DM, Pritchard AE, Spira AP, Volk HE, Jacobson LA. Qu X, et al. J Atten Disord. 2024 Jan;28(1):99-108. doi: 10.1177/10870547231204010. Epub 2023 Oct 21. J Atten Disord. 2024. PMID: 37864347 Free PMC article.
MeSH terms
LinkOut - more resources
Full Text Sources
Research Materials