Abstract
Life satisfaction and its relationship to aspects of sleep were investigated in 701 Norwegian university students using recreated sleep logs, questions about sleep-related experiences, a sleep quality item and the Satisfaction with Life Scale. The results indicated that better sleep quality, longer mean sleep duration, less variability in sleep duration and less variability in rise time were all associated with greater life satisfaction, but only sleep quality and variability of sleep duration were significant predictors of life satisfaction in a regression model. Consistent with previous research, the results emphasize the importance of sleep quality, and adds to existing research by suggesting that in some populations, variability of sleep duration might be more relevant to well-being than sleep duration itself.
Highlights
Life satisfaction is commonly used as an indicator of general well-being (Diener, Emmons, Larsen, & Griffin, 1985), and has been found to be related to perceived stress, reported level of social support, and self-efficacy in university students (Coffman & Gilligan, 2002)
Students should be advised to sleep approximately the same number of hours each night. When it comes to variability of sleep schedule, the results suggest that standardizing rise times should be emphasized, and that this might be of greater importance than standardizing of bedtimes in cases where regular sleep durations are not maintained
This study extends and adds to existing research on how different aspects of sleep are related to life satisfaction in graduate and undergraduate students
Summary
Life satisfaction is commonly used as an indicator of general well-being (Diener, Emmons, Larsen, & Griffin, 1985), and has been found to be related to perceived stress, reported level of social support, and self-efficacy in university students (Coffman & Gilligan, 2002). One type of well-being, life satisfaction, falls into this cognitive category of happiness according to Shin & Johnson (1978) and is defined as a judgmental process where individuals assess the quality of their life by using their own criteria. The judgement of the degree to which people are satisfied with their life is based on a comparison with a standard set by the individual him or herself, and is not externally imposed (Diener et al, 1985) Another construct that has been used when studying well-being is quality of life. This construct has been given countless definitions, it seems to often be defined in a broader way than life satisfaction and concerns the general well-being of people and societies (Felce & Perry, 1995). Using more than one aspect of sleep allows for a comprehensive assessment of sleep, and provides the opportunity to investigate
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