Purpose: Explore the quality of sleep and investigate the relationship between sleep quality, using social media platforms, and academic performance among university students.Design and Methods: A cross-sectional correlation design was used, 412 students completed an electronic questionnaire.Findings: The majority of university students suffer from poor quality of sleep. The most frequently used social media platforms were WhatsApp, Snapchat, and YouTube. The strongest predictor of having very poor sleep quality was addiction on twitter. Practice Implications: An educational program about the importance of adequate sleep should be supported university students. K E Y W O R D S sleep, sleep quality, social networking, university students 1 | INTRODUCTION Humans have a biological clock system to preserve bodily functions, such as body temperature, blood pressure, electrolyte levels, heartbeat, circulation, and food ingestion. During sleep, the body secretes growth hormones that maintain the immunological, metabolic, and cardiac systems. The purpose of these systems is; however, impaired by sleep disorders. Sleep deficiency is characterized as insufficiency in sleep quantity or quality required for optimal health and performance often resulting from prolonged wakefulness, inadequate sleep duration, sleep fragmentation, or a sleep disorder. 1 Humans can stand several days of continuous sleeplessness; however, they may have a negative impact on health, deterioration in welfare and effectiveness and lead to deteriorated performance. 2 Seven or more hours per night regularly were required to maintain and improve health. 3 However, sleep deprivation and drowsiness are widespread among university students. 4,5 Because of university lifetime carries new challenges (different social life, academic setting that can have both positive and negative influences on students health, stress factors due to academic achievement, social burdens, split-up from family, and financial distresses) may affect negatively on sleep quality and lead to many problems. 5In addition, sleep deprivation (less than 6-7 hours per day) has negative influences on perception, learning, concentration and thinking strategies, and may lead to vision disturbances, slower reactions, lower capabilities and efficiency of cognitive performance and sick memorizing, schematic thinking, which yields wrong decisions and drop in academic grades. Besides, sleep deprivation