Dreams are an inexplicable part of our reality. Sometimes, they are good, sometimes bad, and sometimes, we revisit our terrors in them.
As one who knows quite a bit about bad dreams and has already learned to make a distinction between dreamtime and physical reality, I'm in total solidarity with your action, as, once, I too used to fight the demons in my dreams, up to the point where falling on the corner of my bedside table almost took my left eye, which included a visit to the Hospital.
So, if it ever happens again, to see figures going around your room, just do what the Beatles say and let it be. Even if they are real, you are lying in bed and at a disadvantage. You may as well pretend to be asleep.
That's what I do, anyway... Cheers, mate!