It happened to me once when i was trying to wake up.
I couldn’t move and it was frightening and lasted for about 10-15 seconds and this was enough to scare the shit out of me. I didn’t have any hallucination but read some people can have them.

I was reading about this and learnt: sleep paralysis happens when parts of rapid eye movement (REM) sleep occur when we’re awake.

REM is a stage of sleep when the brain is very active and dreams often occur. The body is unable to move, apart from the eyes and muscles used in breathing, possibly to stop us acting out our dreams and hurting ourselves.

Posted using Partiko iOS