If you have ever wondered why we sleep, you are not alone. The puzzle of sleep and the question of why we sleep has been a much-researched topic yielding few really definitive answers. Sleep is a dormant state and some researchers have answered the question of why we sleep by stating that reparative forces occur during sleep...and that is why we sleep. However, just a bit of thought will find this common answer extremely unsatisfying. Why do we need to sleep to have repairs done? In fact, are not repairs going on continuously?