DARPA Develops Brain Chemical to Replace Sleep – Amazing is just the beginning, It was discovered that the deficiency of “Orexin A” (yes i know it sounds like some Sci-Fi character) causes narcolepsy in some people. Then the next step was to introduce this chemical into people to see what happened and voila, Sleep Gone! Yes as easy as that this nasal spray takes away the symptoms of sleep and it produces no effect on already awake people (because it is not an stimulant as caffeine). The future apparently will be like your light switch… one pill to go to sleep and another to wake up.