Research
Mixed
Poor sleep quality (PSQI > 5) is significantly associated with increased sick leave, poor physical and psychological health, and work-related problems in white-collar employees, with perceived stress being the strongest correlate.
If you are a white-collar worker experiencing poor sleep, recognize that it is likely contributing to your stress, health issues, and work problems. Prioritize stress management and improving your sleep environment, as these are key factors linked to better sleep quality and overall well-being.
GoodSupportsHIGH confidence
Poor sleepers were more likely to take sick leave, suffer from poor physical and psychological health, and have problems in occupational activities and personal relationships. The most strongly associated factor underlying poor sleep quality was perceived stress, followed by job dissatisfaction, being unmarried, poor bedroom environment, lower academic attainment, younger age, and hypertension.
Why this rating
Large sample size (n=4,868), high response rate (85.9%), and use of validated PSQI measure, though cross-sectional design limits causal inference.
Source
Impact and Correlates of Poor Sleep Quality in Japanese White-Collar Employees
Yuriko Doi et al. · SLEEP · 2003
DOI 10.1093/sleep/26.4.467
cross_sectional · n=4868Cited 190×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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