A study by Dr. Peter Johanson, a psychologist at the University of Western Sydney, has found that “night owls” more commonly have the personality traits known as the Dark Triad. Unfortunately, while this sounds delightfully Harry Potter-related, it’s just the three domineering forces of dickheadedness: specifically, narcissism, Machiavellianism and psychopathic tendencies.
Johanson came upon the results after he surveyed 263 students with questions about their personality traits, social standing and sleep patterns. In addition, those who stayed up later displayed “a higher sense of entitlement and seemed to be more exploitative.” (Older studies have also suggested they’re more intelligent.) This could be chalked up to evolution, and certain animal species still take advantage of the nighttime to poach mates from their sleeping rivals.