Daytime Sleepiness, Body Mass Index, and Physical Activity Levels Among University Undergraduate Students: Do They Affect Sleep Quality?

BACKGROUND/AIMS: This study aimed to determine the relationship between sleep quality and body mass index (BMI), physical activity level, and daytime sleepiness among university students. MATERIALS AND METHODS: This study was conducted with 299 undergraduate students. Data were collected using a sociodemographic questionnaire, the International Physical Activity Questionnaire Short Form, the Epworth Sleepiness Scale, and the Pittsburgh Sleep Quality Index. All participants underwent anthropometric measurements. RESULTS: 55.9% of the students had good sleep quality and 44.1% had poor sleep quality. Sleep quality was not significantly associated with BMI. Poor sleep quality was correlated with excessive daytime sleepiness. Physical activity level was significantly associated with BMI, sleep latency, subjective sleep quality, and sleep disorders. CONCLUSION: Sleep quality was found to affect daytime sleepiness, with excessive daytime sleepiness observed in students with poor sleep habits. Physical activity and BMI did not affect sleep quality.