- Sleeping for more than 9 hours a night can increase your chances of having nightmares, according to a study conducted by the University of Oxford.
- During the study, 846 participants answered questions about the frequency and severity of their nightmares (which yielded a score on the ‘nightmare severity scale’), and disclosed important life events (such as illness, divorce etc), their tendency to worry, drinking habits, and how much sleep they got.
- The results will terrify you.
- There was an increase in the occurrence of nightmares for people who slept more than 9 hours.
- Stephanie Rek from the University says sleeping for longer increases the amount of rapid eye movement sleep (when nightmares are most likely to occur).
- Unsurprisingly, worrying about things had the most distinct effect on the the frequency and severity of nightmares.