@worriedDAD,
Quote:Sleep researchers conclude that, in most cases, sleep paralysis is simply a sign that your body is not moving smoothly through the stages of sleep. Rarely is sleep paralysis linked to deep underlying psychiatric problems.
https://www.webmd.com/sleep-disorders/guide/sleep-paralysis#1
If by the term "sleep paralysis" you mean the feeling of being awake yet totally unable to move a muscle, this is something that I have suffered now and again throughout my life. There are no negative consequences.
When we sleep, the body produces a chemical which keeps our muscles from moving so that when we are dreaming of running or jumping or diving or swinging a baseball bat or throwing out a fist, our bodies remain immobile so that we don't hurt ourselves or those around us. All mammals, I believe, are the same as us. It's a natural process even if it can be quite terrifying. I once saw a video of a science experiment where a kitten was deprived of this particular chemical and while the kitten was sleeping on his side, his legs were going a mile a minute because, it seems, the kitten was dreaming of running.
As to bad dreams, we all have those.
Have your son read the information at the link I sent. And you can search for more as well.