Public health is an aspect that has shown a decline since the COVID-19 pandemic emerged, both globally and in Indonesia. Seeing these conditions, the Indonesian government has implemented restrictions on community mobility, including the learning process (lectures) which must be held online. This triggers an increase in screen time among teenagers, while at the same time there is a decrease in sleep quality and low physical activity. The purpose of this study was to determine the relationship between sleep quality during the COVID-19 pandemic with the level of physical activity and the degree of screen time for adolescents. The objection of this research is to analyze the relationship between adolescent sleep quality during the Covid-19 pandemic with levels of physical activity and screen-time. Methods: The study used an observational approach with a cross sectional design of 185 students. The research was conducted in November 2021 at the Faculty of Medicine, Sriwijaya University. Research data collection through online questionnaires and data analysis using Chi square test. Results: This study shows the results, as many as 77.82% of students have poor sleep quality, 48.64% have low levels of physical activity and 76.22% of students show high smartphone screen-time. The bivariate test showed that there was a significant relationship between the level of physical activity and sleep quality, namely p = 0.002. However, there was no significant relationship between sleep quality and the degree of screen-time (p = 0.253). Conclusion: The level of physical activity has a significant relationship with adolescent sleep quality. Physical activity is a factor that affects teenagers in getting good quality sleep during the COVID-19 pandemic
