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Introduction Limited and conflicting evidence examines associations between screen time, depression, anxiety and insomnia in adolescents. Surprisingly few studies focus on college students who face unique sleep-related challenges, frequent media use and elevated rates of mental health problems. Therefore, the goal of the present study was to examine the influence of different types of screen time on the relationship between anxiety/depressive symptoms and insomnia symptoms in college students. Methods Participants (N = 1,085 college students with a mean age of M = 21.15 [SD = 5.51]) completed questionnaires of demographics, anxiety, depression, insomnia, and daily screen time. Type of screen time was classified as: (1) social, (2) non-social, or (3) productivity. We conducted correlations and used Model 1 of the PROCESS macro version 3.5 was used to determine whether type of screen time moderated the relationship between depressive or anxiety symptoms and insomnia. Results Insomnia symptoms were moderately correlated with anxiety (r = .49, p = <.001) and depressive symptoms (r = .60, p = <.001). Anxiety symptoms were correlated with social screen time (r = .09, p = <.01); depressive symptoms were correlated with non-social screen time (r = .13, p = <.001). Social screen time moderated the relationship between anxiety symptoms and insomnia symptoms (b = -.03, SE = .01, p = .01) and the relationship between depressive symptoms and insomnia symptoms (b = -.02, SE = .01, p = .02). Productivity and non-social screen time were not significant moderators. Conclusion Anxiety symptoms were only correlated with social screen time whereas depressive symptoms were only correlated with using non-social screen time. Moderation analyses revealed social screen time moderated the relationship between anxiety/depressive symptoms and insomnia symptoms. Elevated social screen time was associated with elevated insomnia symptoms among participants with less anxiety/depressive symptoms. Distinguishing between non-social and social screen time may be relevant when examining the influence of screen time on depressive/anxiety symptoms and their relationship with insomnia symptoms. Further research could address these findings in a clinical sample and examine whether intervening on specific types of screen time impacts the relationship between depression/anxiety and insomnia. Support (if any) None

Introduction Fear of missing out (FoMO) refers to anxiety and apprehension an individual feels when they believe they are missing out on rewarding experience, social interaction, or information. FoMO has been associated with negative psychological and behavioral symptoms and might also impact sleep health. This meta-analysis therefore aimed to examine the existing literature on the relationship between FoMO and dimensions of sleep health. Methods A systematic literature search across PubMed, PsycINFO, and Web of Science was conducted in August 2023. Primary inclusion criteria were original research studies that test the relationship between FoMO and a dimension of sleep health. Of the primary 268 studies identified, 16 were included in the final analysis. Results Meta-analytic results of the random-effects model applied to a total of 3 independent samples showed a positive correlation between FoMO and Bedtime Procrastination (Fisher’s Z = 0.250; 95% CI 0.137, 0.362; Z = 4.348; p <.001). Additionally, meta-analytic results of the random-effects model applied to a total of 5 independent samples showed a positive correlation between FoMO and Sleep Hygiene (Fisher’s Z = 0.268; 95% CI 0.186, 0.350; Z = 6.419; p <.001) and Sleep Quality (Fisher’s Z = 0.305; 95% CI 0.038, 0.572; Z = 2.240; p = 0.025). Additionally, two or less independent samples showed positive significant relations between FoMO and insomnia, later lights out time, problematic sleep, sleep-deprivation, SOL and TST. Conclusion FoMO seems to be related to different dimensions of sleep health. It seems like the constant urge to stay connected or engaged can lead to sacrificing essential sleep hours, resulting in decreased sleep quality and procrastinated bedtime. This can have effects on various aspects of physical and mental health. Therefore, addressing FoMO may be relevant in improving sleep health. While our findings are significant, it's crucial to acknowledge the limitations of drawing conclusions from some of our results, which were based on findings from just one study. This highlights the need for further comprehensive research to establish a better understanding of the relationship between FoMO and sleep health. Future research should additionally focus on conducting longitudinal studies to understand the direction of the relationships better Support (if any)