Objective:

To investigate the role of sleep quality as a mediating factor and depression as a moderating factor in the relationship between internet addiction and daytime sleepiness among nursing students, highlighting the significance of understanding these connections.

Key Findings:

• Internet addiction is positively correlated with daytime sleepiness, sleep quality, and depression, with correlation coefficients provided.
• Sleep quality partially mediates the relationship between internet addiction and daytime sleepiness.
• Depression strengthens the relationship between internet addiction and sleep quality.

Interpretation:

The study reveals that poor sleep quality significantly mediates the relationship between internet addiction and daytime sleepiness, with depression exacerbating this relationship, suggesting a need for targeted interventions.

Limitations:

• The study is cross-sectional, limiting causal inferences.
• Self-reported measures may introduce bias.
• Findings may not be generalizable to nursing students outside the sampled universities.

Conclusion:

The findings highlight the psychological mechanisms linking internet addiction to daytime sleepiness in nursing students, emphasizing the roles of sleep quality and depression, and suggesting avenues for future research and practical applications.