I'm going to suggest that you find out about sleep paralysis and talk with him about it, the rarity, the treatment, and what to do. My own experience is why: when I was in grade school, October was Fire Safety Month. The fireman would come to school and tell us how to be safe:
Don't sleep near the fire (the fireplace was on the wall adjacent to my bedroom, my bed was up against the wall),
Don't leave dry cloths laying about (my mom was puzzled that I wouldn't wring out my washcloth; yes, I was a literal kid: Other fabrics were fabric, not cloths, this was a washCLOTH, don't let it dry. They meant dry chemical-laden rags, I think.),
Have a plan for escape in the night (I slept in my robe and slippers for months after each October).
There was more, thank goodness I can't remember now.
If someone had addressed my fears instead of poo-pooing them or ignoring them, I'd have slept better for years.
