Objective: To investigate the relationship between nightmares and a common, nonpathological behavior, this study tested the relationship between nightmares and night-sky watching. Method: University students (N= 79) completed measures of night-sky watching frequency, nightmare frequency, and the Noctcaelador Inventory, a measure of psychological attachment to the night-sky. Data was analyzed using standard correlational procedures Results: Nightmares were significantly positively related to night-sky watching frequency, but not noctcaelador. Conclusions: The results suggest a possible shared psychic structure for night-sky watchers and nightmare experiencers. Future research is indicated to examine this structure further and to more rigorously test the mood management hypothesis of night-sky watching.