Participants who completed the survey were categorized based on the dependent variable, i.e., their self-reported quality of sleep. They were grouped by sex, age class, education level, household composition, any financial problems, occupational status, lifestyle habits, and psychological distress. We report both the number and proportion of missing values. We looked for associations (crude odds ratio—OR—and its 95% confidence interval—95% CI) between the sociodemographic and occupational characteristics, changes in lifestyle, and the presence of psychological distress as independent variables and the quality of sleep categories. Separate models of multivariate regression analysis, all adjusted for age, sex, and education level, were built for any of the independent variables which, based on the crude OR and its 95% CI, proved to be strongly associated with quality of sleep. Missing values were not included in the analyses. Statistical analyses were performed using jamovi 1.2.27 (Jamovi Project, Sydney, Australia) [8].