Lecture start time and sleep characteristics: Analysis of daily diaries of undergraduate students from the LoST-Sleep project.

Autor: Swinnerton L; School of Psychology, University of Lincoln, Lincoln, UK; Department of Psychology, University of Sheffield, Sheffield, UK., Moldovan AA; School of Psychology, University of Lincoln, Lincoln, UK., Mann CM; School of Psychology, University of Lincoln, Lincoln, UK., Durrant SJ; School of Psychology, University of Lincoln, Lincoln, UK; Lincoln Sleep Research Centre (LiSReC), University of Lincoln, Lincoln, UK., Mireku MO; School of Psychology, University of Lincoln, Lincoln, UK; Lincoln Sleep Research Centre (LiSReC), University of Lincoln, Lincoln, UK; Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK. Electronic address: mmireku@lincoln.ac.uk.
Jazyk: angličtina
Zdroj: Sleep health [Sleep Health] 2021 Oct; Vol. 7 (5), pp. 565-571. Date of Electronic Publication: 2021 Jun 27.
DOI: 10.1016/j.sleh.2021.04.001
Abstrakt: Objectives: Emerging evidence shows that later high school start times are associated with increased sleep duration; however, little is known if this extends to the university setting. This study investigated associations of first lecture start times with sleep characteristics among university students.
Design: Daily diaries.
Setting: Lincoln, UK.
Participants: One hundred and fifty-five undergraduate students completed 7-night sleep diaries MEASUREMENTS: Of the plausible lecture-day diaries (Monday-to-Friday, expected N = 755 days), 567 days were lecture days (M = 3.8 lecture-days per student, SD = 1.1). The Consensus Sleep Diary was used to collect sleep characteristics. Two-level multilevel mixed effect generalized linear models were employed in the analyses.
Results: Seventy-five percent of first lectures occurred before noon. Students reported short sleep (M = 7.0 hours, SD = 1.9) and fewer reported highest levels of sleep quality (42.8%) and restfulness (24.8%) when first lectures started at 09:00 or 09:30 compared to 10:00 or later. Every hour delay of first lecture start time was associated with 15.1 (95% confidence interval [CI]: 9.5; 20.7) minutes increase in sleep duration and higher odds of reporting the highest levels of sleep quality and restfulness. Focusing on attended lectures starting before noon, hourly delay of first lecture start time was associated with 37.4 (95% CI: 22.0; 52.8) minutes increased sleep duration. Bedtime, sleep time, and sleep onset latency were not significantly associated with first lecture start times.
Conclusion: This study found that undergraduate students had longer sleep and healthier sleep quality when university first lectures started later. The earliest lecture start time that afforded sufficient sleep duration for students was 10:00.
Competing Interests: Declaration of Competing Interest The authors have no conflicts of interest or financial relationships relevant to this article to disclose.
(Copyright © 2021 National Sleep Foundation. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: