Yes, what I wrote was too restrictive. Sleep-onset REM periods (SOREMPs) are definitely a part of normal experience. If they occur regularly in an individual, that's a symptom of narcolepsy (or sleep deprivation; the two are similar). There could be possibilities that I am not aware of, as well. I know people who have claimed to have SOREMPs sometimes who don't have narcolepsy and were not sleep deprived. I was not arguing that SOREMPs are necessarily bad, just that what is known about them is not good, which set off a red flag for me.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.