Sleep… sleep…sleep… it is a natural state of bodily rest observed throughout the entire animal kingdom. It is common to all mammals, birds, and also seen in many reptiles, amphibians and fishes. In humans, or other mammals, regular sleep is essential for survival and restores energy. However its purposes are only partly clear and are the subject of intense research… so now out of curiosity I’ll begin the research by observing why student... especially Uni student sleep in class…is it because there are rushing for assignment last night? Are they tired due to yesterday’s clubbing? Are they tired due to previous classes or tight schedule? Or they just simply being ignorant of the lecturer who are teaching and enjoy their nap? Let’s observe together my friends. People!!! wake up and concentrate in class....