Study Explores Potential Link Between Near-Death Experiences and “Sleep Intrusions”

One in ten participants of a newly released study were found to have had a confirmed near-death experience, or NDE.

Researchers, led by Dr. Daniel Kondziella, used an online crowdsourcing platform to “investigate the prevalence of near-death experiences and self-reported REM sleep intrusions.”

They used the Greyson Near-Death Experience Scale, or GNDES, to identify what they considered “confirmed” NDEs. 289 participants out of the initial 1,034 claimed to have had an NDE. Out of those, 106 were confirmed using the scale.

The Greyson NDE Scale was created by psychiatrist Bruce Greyson “to measure the depth of an individual’s near-death experience,” and it can be found here. The study used a cutoff of greater than or equal to 7 points on the scale to determine what they considered actual NDEs. What they found was that about 10% of participants had an NDE, and that those who had confirmed NDEs were more likely to also have experienced self-reported “REM sleep intrusions.”

“Following multivariate regression analysis to adjust for age, gender, place of origin, employment status and perceived danger, this association remained highly significant; people with REM sleep intrusion were more likely to exhibit near-death experiences than those without REM sleep abnormalities.”

The paper (which can be read in full here) contains information on the questions asked, participant demographics, as well as anecdotes and descriptions of individual NDEs. It’s worth a look. Notably, according to this study, “almost half of all near-death experiences were labelled as stressful.” I can imagine.


Rob Schwarz

Rob Schwarz is a writer, blogger, and part-time peddler of mysterious tales. Editor-in-chief of Stranger Dimensions.


  1. It would also be interesting to see how many from this group also have what I’ll paraphrase as “psychic tendencies”.

    1. I am currently writing about my NDE. I definitely have psychic tendencies. They have saved my life well after the time I died. They have never saved me when it had anything to do with wealth or need. My Grandmother Had Second Sight and told me when I was a child that she thought I would be special. That I would know things and that I should always listen. I always let Common Sense take over, when it told me no I my intellectual side would say yes. This choice LED my life into a perilous Direction. Thank you for listening and I wish I could tell you about my death experience. It wasn’t even an NDE, I died. And, here I am!