When there is an upcoming exam the next day, most students will study very late at night sacrificing sleep time to get a better grade on the test. However, studies have shown that this could significantly reduce college students' critical thinking skills, cognitive functions, problem-solving skills, and short-term memory. So the result will be that students perform worse rather than getting enough sleep to prepare for the test. According to a research study, students can perform better and more efficiently by getting enough sleep and rest every night (Schumacher & Sipes, 2015). The American Academy of Sleep Medicine also stated that the best way to maximize performance on final exams is to study and get a good night's sleep (AASM, 2007). However, most students were unaware of this truth. They think that spending more time studying will improve their grade, but in reality it is the opposite as they sacrifice their time to sleep. Students will feel tired while studying for the next day's test, which makes them inefficient. Furthermore, students are not aware that their ability to memorize gradually decreases. With the passage of time and lack of sleep, these consequences will accumulate and they will find that they can no longer store information in their memory. Students will have difficulty studying for a test.