Physical activity levels and sleep quality are two crucial aspects that can significantly influence overall health. Research has established a significant relationship between these two aspects. A group of 300 high school students (120 boys and 180 girls) enrolled in schools in the province of Meknes during 2021 was randomly selected. A validated self-report questionnaire was used to assess the intensity of physical activity and sleep duration among participants. This study revealed a positive correlation between the intensity of physical activity and sleep duration. An intense physical activity level was significantly positively associated with sleep duration. This study revealed a positive correlation between physical activity levels and sleep duration. These findings suggest that increasing physical activity may improve sleep quality. However, it is important to consider other factors to enhance overall sleep quality.