For those that don't know what it is, its basically sleep paralysis with hallucinations. It can come as a semi common side effect. Its when you wake up in the middle of the night and find you can’t move, or even cry for help, your body is paralyzed but your minds awake.
For most people this is where it stops but other's aren't so lucky. If, during this bizarre paralysis, you suddenly felt that someone—or something—was watching you, you have come face to face with the waking hallucination known as the Intruder.
This phenomena has been recorded for hundreds of years, but strangely there a number of "common" intruders. The most terrifying thing is your awake, so its the worst kind of nightmare but its real, you cant control it or stop it because your not in a dream.
The most common is a goblin or ghoul that sits on the end of your bed then climbs up towards you and your powerless to help. This is one i commonly experience but i know there is a lot of story's of a Night elf/gnome type creature known as the incubus that will whisper in your ear.
The most common one i get tormented by is a ghost, a lot of the time i cant see it but i know its there i can feel it and it slaps me from time to time. Occasionally i will wake up and see a miniature girl in a while dress sitting on my desk.
I also have a large cat from time to time.
Since discovering this its not as scary anymore as i know what i'm experiencing and can convince myself its not real but even at that people hanging from the celling in the middle of the night is always gonna creep you out. Before i knew of the intruder i was convinced i was being haunted convinced it was all real. My mother recently told me i used to talk about Goblins at the end of my bed when i was a child, thankfully i don't remember this.

Has anyone else experienced this. If so is there any dominant or reoccurring characters or creatures that visit you?
I hope this thread will help you understand and reduce the fear that this phenomena can cause.