Predicting sleep quality from stress and prior sleep - A study of day-to-day covariation across six weeks

ArticleinSleep Medicine 13(6):674-9 · May 2012with73 Reads
DOI: 10.1016/j.sleep.2011.12.013 · Source: PubMed
Abstract
The connection between stress and sleep is well established in cross-sectional questionnaire studies and in a few prospective studies. Here, the intention was to study the link between stress and sleep on a day-to-day basis across 42 days. Fifty participants kept a sleep/wake diary across 42 days and responded to daily questions on sleep and stress. The results were analyzed with a mixed model approach using stress during the prior day to predict morning ratings of sleep quality. The results showed that bedtime stress and worries were the main predictors of sleep quality, but that, also, late awakening, short prior sleep, high quality of prior sleep, and good health the prior day predicted higher sleep quality. Stress during the day predicts subsequent sleep quality on a day-to-day basis across 42 days. The observed range of variation in stress/worries was modest, which is why it is suggested that the present data underestimates the impact of stress on subsequent sleep quality.
    • "Second, we assessed general or trait worry, not nighttime sleep-related worry. Research documents that nighttime sleep-related worry and stress near bedtime are associated with sleep impairment (Åkerstedt et al., 2012; Lancee, Eisma, van Zantem, & Topper, 2015), which in turn, may increase presleep arousal (Yeh, Wung, & Lin, 2015) that persists into and disrupts sleep. Based on this pattern, it is possible that African Americans engage both in reflection on previous discrimination experiences and worry about future experiences of discrimination at the end of the day. "
    [Show abstract] [Hide abstract] ABSTRACT: Background: African Americans experience more problematic and disordered sleep than White Americans. Racial discrimination has been implicated in this disparity. However, the mechanisms by which discrimination disrupts sleep are unclear. It has been theorized that Perseverative Cognition (PC), characterized by recurrent patterns of reflective (i.e., rumination) and anticipatory (i.e., worry) negative thinking about personally relevant stressors, may reflect the functional mechanism linking discrimination to sleep. The present study is the first to empirically examine the dual components of PC as a candidate functional mechanism in the association between racial discrimination and subjective sleep quality. Participants: Sixty-eight self-identified African American college students (55.9% female; Mage = 20.18, SD = 2.93) were recruited at a large predominantly white public university in the Midwest. Methods: The participants completed the Perceived Ethnic Discrimination Questionnaire (PEDQ), Pittsburgh Sleep Quality Index (PSQI), Penn State Worry Questionnaire (PSWQ), and Ruminative Responses Scale (RRS). Results: After adjusting for age, gender, and social class, results revealed a significant indirect effect of racial discrimination (RD) on subjective sleep quality through rumination, 95% CI [.008, .125], but not worry. RD was positively associated with rumination, b =.50, SE =.16, p = .003, and rumination, in turn, was positively associated with poorer sleep quality, b = .09, SE = .04, p = .012. Conclusions: As both RD and poor sleep quality have been directly linked to heart disease, diabetes, depression, and a number of other maladies, our findings suggest that RD, sleep, and coping strategies (e.g., rumination) employed to manage RD experiences may be important targets for addressing racial disparities in health.
    Full-text · Article · Oct 2016
    Lori S. HoggardLori S. HoggardLaBarron K. Hill
    • "In addition to this line of research that focused on job stressors, other studies looked at psychological strain as a predictor of poor sleep. Åkerstedt, Orsini, et al. (2012) collected diary data on sleep parameters, stress during the day, and worries at bedtime from a sample of 50 adults (70% employed) over a period of 42 days. In univariate analyses, both average stress during the day and worries at bedtime predicted poor sleep quality during the following night. "
    Chapter · Jun 2016 · Journal of Workplace Behavioral Health
    • "Secondly, this study focused mainly on burnout as the explanatory variable in the relationship between commuting stress and work outcomes. However, commuting stress may impede other vital processes such as recovery and sleep, which may in turn influence employee well-being (see e.g., Åkerstedt et al., 2012; Van Hooff, 2015). In addition, the alpha coefficient for job satisfaction in the present study was quite low (.62), which may partly account for the nonsignificant relations reported earlier. "
    [Show abstract] [Hide abstract] ABSTRACT: This study uses structural equation modelling to test a model that posits that commuting stress would have direct and indirect effects (through burnout) on employee job satisfaction and turnover intention. Based on a sample (N = 336) of employees from diverse occupations in Ghana, the results partly supported the authors’ hypothesized model. Commuting stress was positively related to burnout and turnover intention but had no direct relationship with job satisfaction. In addition, commuting stress was indirectly related to job satisfaction and turnover intention via burnout. These results were found to be invariant for men and women. Implications of the findings for theory and practice are discussed.
    Full-text · Article · Apr 2016
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