Sleep Zzzzzzzzzz.... Let's first define what sleep means. "A natural periodic state of rest for the mind and body, in which the eyes usually close and consciousness is completely or partially lost, so that there is a decrease in bodily movement and responsiveness to external stimuli. During sleep the brain in humans and other mammals undergoes a characteristic cycle of brain-wave activity that includes intervals of dreaming." got from answers.com Sleep is very important in our lives particularly on health concerns. If one is deprived due to lack of sleep; it can result to reduced productivity at work, irritability and some various health problems which may result to death. There were some theories wherein sleep is considered as an important factor in establishing well-organized long-term memories. Stayed up later, running errands, watching televison, playing Computer games, late-night works/overtime are some causes why some people are being deprived of sleep. As what i have had known, there are two kinds of sleep. Its the long-term and short -term sleep. The former one described those people who need to sleep a minimum of eight hours or more while the latter described those who sleep less than the required hours of sleep which is less than 8 hours. Sleeping hours vary on each individual. Whether you require maximum or minimum of sleep, you knew and aware of your capacity. As for me, I love to sleep. I am a long-term sleeper. I cannot afford to sleep with less than 8 hours unless needed. This is one of our necessities in life that are free. So bye for now...For i have to shut off my eyes to slumber...