Social relations and cellphone addiction mediate the relationship between sleep and quality of life in medical students residing in dormitories.

Environmental and social factors, such as the place of residence, social relations quality, and cell phone addiction, may influence the relationship between sleep quality and quality of life. This study aimed to examine the mediating role of social relations quality and cell phone addiction in the relationship between sleep quality and quality of life among medical students residing in dormitories. In this cross-sectional study, 380 medical students who resided in the university dormitory participated. Pittsburgh Sleep Quality Index (PSQI), WHO Quality-of-Life Scale, Social Relational Quality Scale, and Cell phone Addiction Scale were used. Pearson correlation coefficient and structural equation modeling were used for data analysis through Macro PROCESS SPSS (Model 4). This study indicated that medical students residing in dormitories who experienced better sleep quality and stronger social relations quality reported an enhanced quality of life. The indirect effect of sleep quality on the quality of life was mediated by social relations quality (Effect=-0.09, 95% CI: -0.18 to -0.02). The cell phone addiction did not mediate the effect of sleep quality on the quality of life (Effect=-0.006, 95% CI: -0.04 to 0.02). Given the mediating role of social relations quality in the relationship between sleep quality and quality of life in medical students residing in dormitories, by increasing in quality of sleep using improved quality of social relations led to a better quality of life.