This study aims to test the direct association of work addiction risk with stress at work and wellbeing. Second, this study measures the extent to which the association between work addiction risk and both stress at work and wellbeing can be mediated by the quality of sleep. Attention to work addiction risk is growing, however, more studies are needed to explore the vast impact of work addiction risk on various aspects of employees’ wellbeing such as working and living areas. Although more studies focused on the antecedents or consequences of work addiction risk, in this study we focused on sleep quality as a mediator to further explain the underlying mechanism that can explain the various impacts of work addition risk on employees’ wellbeing and stress. The data was collected using an online platform and participants were 188 French employees who were selected using a simple random sampling method. Participants responded to surveys on work addiction risk, stress at work, wellbeing, and sleep quality. The data was analyzed using AMOS-26 and SPSS- 26 programs. No intervention was performed. The results revealed that there is a statistically positive relationship between work addiction risk and stress at work and a negative relation between work addiction risk and both sleep quality and wellbeing. In addition, the analysis of median paths suggests that sleep quality mediated the link between work addition risk and stress at work as well as the link between work addiction risk and wellbeing. However, sleep quality was found to be a stronger mediator of work addiction risk and wellbeing. The study provides empirical evidence for the finding that work addition risk can detrimentally influence employees’ wellbeing and the extent they perceive stress at work.

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