Granted, sleep is not needed and your mind is its own alarm clock. However, sleeping is important not only for giving your body and cells time to revitalize while your metabolic rate is lowered, it helps you psychologically handle what is on your mind, and without sleep you'd go crazy and be energy deprived. You, Fugus, are the only person bold enough to decide not to sleep enough since you don't feel the need too, and your body and mind are eventually ravaged. Soon enough, the only way for you to recover is to sleep extended periods of time, months at a time, in a comatose state while only being awake and conscious for a few days afterward, and so the cycle continues. (And if you decide to ignore sleeping, you just die.) Yes, sleeping is still optional. You also have the option to jump off the Brooklyn, but you don't.