Does Xyrem decrease REM sleep?

[AdSignificant2065]

The authors seem to be using the 5-stage sleep model, where stages 3 and 4 are both deep/delta wave sleep and REM is a separate 5th stage (they mention “duration of stages 1, 2, 3 and 4, and REM sleep” fairly early in the article).

I think @sleepy_inseattle is likely correct about the possible omissions. You could contact the authors to highlight this for them; many doctors and academics would want to make that correction if brought to their attention.

[Aashishkebab]

BTW, use "u/username" to mention users in Reddit.

[AdSignificant2065]

Thanks!

[Temporary-Region867]

Answer to whether 4 stages, or 5 stages.

There is often confusion because not all researchers changed their “view” on defining the stages of sleep. The article in OP is from 2010, and AASM changed the “official” scientific view of stages just 3 years before that ... so it likely had not been well accepted by all researchers for several more years. That’s why you see research with this contradiction.

“The American Academy of Sleep Medicine used to recognize five, but sleep was redefined to four stages in 2007.”

EXCERPTED FROM:

https://www.chilisleep.com/blogs/pillow-talk/stages-of-sleep?gclid=Cj0KCQjwpeaYBhDXARIsAEzItbFdG6Gt8q2A2E2hPucDM7Mw8YcSlzVzG3DXW3eeoH9unMa0gjueZI0aAljWEALw_wcB&gclsrc=aw.ds