I often wake up in the middle of the night and go full visual hallucinations for a couple seconds. Sometimes the walls are covered in faces, sometimes a small c

I often wake up in the middle of the night and go full visual hallucinations for a couple seconds. Sometimes the walls are covered in faces, sometimes a small chinese dragon flies slowly across the room. They only ever last the two-three seconds. I’ve managed to condition myself to expect the hallucinations even in the half-asleep state during which they come. I expect it’s just that my brain is still in REM even though my body is no longer paralyzed.