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Losing Sleep Over It: Daily Variation in Sleep Quantity and Quality in Canadian Students' First Semester of University
Author(s) -
Galambos Nancy L.,
Dalton Andrea L.,
Maggs Jennifer L.
Publication year - 2009
Publication title -
journal of research on adolescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.342
H-Index - 95
eISSN - 1532-7795
pISSN - 1050-8392
DOI - 10.1111/j.1532-7795.2009.00618.x
Subject(s) - psychology , affect (linguistics) , sleep (system call) , sleep quality , multilevel model , developmental psychology , clinical psychology , psychiatry , cognition , communication , machine learning , computer science , operating system
Daily covariation of sleep quantity and quality with affective, stressful, academic, and social experiences were observed in a sample of Canadian 17–19‐year‐olds in their first year of university. Participants ( N =191) completed web‐based checklists for 14 consecutive days during their first semester. Multilevel models predicting sleep quantity and quality from daily experiences indicated that more time on schoolwork, expecting a test, and alcohol use predicted less sleep whereas socializing predicted more sleep. More positive affect and no alcohol use predicted better sleep quality. Models predicting daily experiences from sleep the night before indicated that less sleep preceded increases in negative affect, decreases in schoolwork time, and a higher likelihood of socializing. Better sleep quality preceded increased positive affect, decreased negative affect and stress, and less time on schoolwork. These data are informative for understanding relations between sleep and daily experiences as they occur naturally in first‐year university students.