Previous research introduced the Nightmare Proneness Scale (NPS) as a measurement for nightmare proneness, the trait-like disposition toexperience frequent nightmares. However, outside predicting nightmares, little is known about the structure of the scale or relationships of itsfacets with nightmares. The factor structure of the NPS and the scale’s statistical independence from psychological distress and negative affectwere examined among a sample of 306 university students. The NPS predicted frequent distressing nightmares independent from psychologicaldistress and negative affect. Three NPS facets were found representing general psychical dysregulation, depressiveness, and somatization.The NPS facet representing general dysregulation was the strongest predictor of nightmares and the only NPS facet to independently predictnightmares outside of distress and negative affect. The results, limitations, and directions for future research are noted.