We often have seen people feeling sleepy all day long. There are people who need medicines to stay awake during the daytime. We may laugh at them, make fun of those who doze off at their workplace or while attending a conversation but we must understand that this is a problem. Many people ignore it as general tiredness and fatigue and think it will go away with time. Some people simply do not bother. But why should you let your daily life get hampered by excessive sleep when you can cure it easily with Modaifinil? Modafinil is considered the best drug for sleep disorder, particularly daytime sleepiness and its also known as provigil. People working in rotating shifts also need the help of such drugs to control their sleeping and waking hours. As the time of the shifts keep changing, the body cannot adjust itself to these changes easily. Our body works according to its own clock that marks sleeping hours and waking hours. That is why they often feel sleepy during the scheduled working hours. Modafinil works very effectively in shift work sleep disorder. It will keep you awake and active in the work that you are supposed to concentrate on. Here is all you need to know about it.