If inmobile, why do some toss and turn?

Have you ever noticed someone tossing/turning in bed, shaking their head, or even talking in their sleep? How exactly does that happen when the muscles are inactive? Is it certain muscles that go inactive? Or does that paralysis occur only in REM and movement is regained in NREM? Sorry for the multitude of questions asked :mad:

Peace

Good question. I don't know for sure, but can offer a couple of possible explainations:

1) They are temporariliy dropping out of sleep paralysis

2) Sleep paralysis is not an absolute thing for some people. They have limited paralysys. Take the case of sleep walking for example. Not much paralysis there.

Everyone is different and located somewhere on the curve. Some experience total and deep paralysis, some experience almost none. The rest of us are somewhere in the middle.

Thanks Seeker, I figured it varied greatly person to person. There doesn't seem to be one definite answer. I wonder what sleepwalking would be since that person is dreaming and being active in the waking world?

I've often wondered this myself, is worth researching.