Sleep plays a very important role in every person's life. However, the reason sleep is so important is questionable. There are many different theories as to why we sleep, but the actual reason for sleeping is unknown. Yes, it is enjoyable, but why does the human body go into such a strange state? Some people's bodies function different than others while asleep. Why does this occur? The truth of the matter is, a lot of the answers to "sleep questions" are debatable.