Have Nightmares? You Could Be Sleeping Too Much

If you’ve been plagued by nightmares lately you might actually be sleeping too much. University of Oxford researchers had 846 people fill out an online survey about their nightmares. Each participant was assessed for their risk of Post-Traumatic Stress Disorder (PTSD), which can cause nightmares, and asked about any recent, upsetting life events, their tendency to worry, how much they sleep, and alcohol consumption. The data showed worrying about the future was associated with the highest number of nightmares, and that those who slept for more than nine hours a night were more likely to suffer nightmares. Researchers say more sleep means there’s more time for the Rapid Eye Movement (REM) phase of sleep, which is the time when nightmares are most likely to occur. Also, worry itself might not cause nightmares, but disrupted sleep due to worry leads to even more worry the following day, which could mean more nightmares the following night. (The Sun