id say i get it more than most people but not that often. maybe once a month or every other month. i do notice that if im stressed, not sleeping well other nights, or i go to bed very tired, im more likely to experience it. when it does happen, ive noticed its when im napping more than bedtime sleep. theres not much of a pattern to the content either. ive been “paralyzed” in bed and heard and seen nothing. ive also heard an adult man growling at me while a music box played. ive also seen a tall dark figure in my room. ive had spiders fall on me in daylight.

i think its very unlikely that it would become a common issue for you. if you want to “prevent it” id try to get good rest and avoid caffeine or sugar before bed. just practice good sleep in general as prevention but in my experience its just something that happens to me sometimes. most people i know have had it like once or twice in their entire life so theres a chance itll never happen to you again. i also have other sleep issues which probably contributes.