Does Sleep Deprivation Affect Students' Academic Performance?Literature ReviewMerriam-Webster Dictionary defines sleep as the natural periodic suspension of consciousness during which the powers of the body are restored (sleep. 2016. In Merriam-Webster.com.). Sleep is an essential biological function that plays a major role in recovery, energy conservation and survival. Sleep also appears to be important for vital functions such as neural development, learning, memory, emotional regulation, cardiovascular and metabolic function, and the elimination of cellular toxins. It is said that we spend about a third of our lives sleeping. Rat studies have been conducted in which total sleep deprivation results in death within 3 weeks (Mukherjee, Sutapa; college experience is of great value because it provides emerging adults with a structured environment in which they can gain the knowledge, skills and independence necessary to plan their own lives, find employment successfully and contribute to society. However, this experience comes at a high cost. A potential barrier to achieving maximum success. college is the high prevalence of lack of sleep, and lack of sleep and sleepiness are caused by lack of sleep. Sleep deprivation is often called acute sleep deprivation or chronic partial sleep deprivation. Acute sleep deprivation is called "pulling an all-nighter", which means that a person remains awake for 24 hours or more. More generally, sleep deprivation consists of partial and chronic sleep deprivation, where the student gets a. partial sleep, but not sufficient. Drowsiness can be an obvious consequence of lack of sleep (Hershner, S. and Chervin, R. (2014)). Daytime sleepiness, a consequence of poor sleep quality, can seriously impair students' cognitive functioning and behavioral performance (Curcio, Ferrara, De Gennaro 2006). A sufficient amount of sleep is necessary for mental and physical state, for cognitive restitution, processing, learning and memory consolidation. Much research has shown that lack of sleep and poor sleep habits also affect cognitive and motor processes as well as emotional stability (Pilcher & Huffcutt, 1996). Because sleep affects cognitive functioning, sleep quantity should be a major concern for students, for whom academic performance is a priority. Many studies link “unhealthy sleep habits” to decreased cognitive functioning and academic performance. Pilcher and Huffcutt (1996) conducted a meta-analysis of existing studies investigating sleep deprivation and its effects on various daytime functions. They define partial sleep deprivation as sleeping less than five hours per night, short-term total sleep deprivation as a period without sleep lasting less than or equal to 45 hours, and long-term total sleep deprivation. term as a period without sleep. sleep lasting more than 45 hours. Partial sleep deprivation is associated with decreased cognitive functioning, while long-term sleep deprivation is associated with mood disorders (Pilcher & Huffcutt, 1996). Sleepiness and irregular sleep schedules have many unintended consequences, one of which is a negative impact on learning, memory and performance. Certain types of memory depend on states of).)