Purpose Although a link between problematic online pornographic use (POPU) and insomnia symptoms has been established, psychological and psychopathological mechanisms underlying this relationship are still not clear. Psychological stress and emotion dysregulation have been pointed out as relevant in the development and maintenance of insomnia. This study aims to explore the associations between POPU, psychological stress, emotion dysregulation and insomnia symptoms and to understand the mediating role of psychological stress and emotion dysregulation in the relationship between POPU and insomnia symptoms. Participants and Methods A sample of 776 Italian adults aged 19–48 years (51.4% female; M age = 28.49; SD = 7.33) completed questionnaires regarding demographics, COVID-19-related variables, POPU, psychological stress, emotion dysregulation, and insomnia symptoms. Results After controlling for demographic covariates and COVID-19-related variables, multiple mediation model showed that higher psychological stress and emotion dysregulation fully mediated the link between POPU and insomnia. Conclusion The findings underscore the significance of the negative consequences of POPU and underline the importance of working on this and its effects on psychological stress and emotion dysregulation to limit insomnia.

Research highlighted that Problematic Social Networking Sites Use (PSNSU) and vulnerable narcissism are associated. However, the mechanisms underlying this relationship are still unclear. The present study aimed to test the mediating role of motives for social networking sites (SNSs) use between vulnerable narcissism and five symptoms of PSNSU (i.e., preference for online social interactions, mood regulation, cognitive preoccupation, compulsive use, and negative outcomes) in a sole model. Self-report questionnaires were completed by 344 SNSs users in the age range of 18–30 years (76.5% females; mean age = 23.80 years, standard deviation = 2.30 years). Vulnerable narcissism, three motives to use SNSs (coping, conformity, enhancement), and symptoms of PSNSU were assessed. Structural equation modeling was used to test for mediation. The results indicate that both motives with positive (i.e., enhancement) and negative (i.e., coping and conformity) valence partially mediated the association between vulnerable narcissism and different symptoms of PSNSU. We conclude that individuals with vulnerable narcissism may develop PSNSU not only as a compensatory strategy to cope with psychosocial difficulties but also as a result of a gratification-seeking process.