One of the paradigms now being used by sceptical ufologists to explain the abduction experience is sleep paralysis and the attendant hypnopompic states, during which the experiencer feels paralysed and may confuse elements of their dreams with the reality from which their consciousness has not yet fully retreated into deep sleep. (1) 
Over the past two decades, the “Roswell Incident” has become the most investigated UFO case in history. When viewed as a historical event, however, the result of all this effort is unsatisfactory. There is no agreement between the various books as to the exact date of the crash, the number of aliens, their appearance, the shape of the UFO, or the roles of the various individuals involved.