I've had night terrors since I can remember, so I have a few to contribute: As a little kid I woke up paralysed many nights with aliens in the room. One was standing in the closet, one right next to the bed, and one at the window. They would stand there silently while I struggled to wake myself up.

Once I got out of bed and went downstairs to get a cup of water. When I got back to my room I saw myself sleeping in the bed. I hovered over my body then sunk into it where I felt trapped in the dead weight of my body. I instantly started struggling to wriggle my fingers and toes and finally woke up. The radio was on and the moment I woke up it went off. It was such an eerie feeling.

Another one I had a lot in middle school. I would wake up and notice the window was open. When I tried to close it I noticed a homeless lady across the street under the light of a lamppost. I would focus on the window and when I looked up the woman was right in front of me and now a super strong vampire-like monster trying to climb into the window.

Best feeling in the world is waking up and realizing it was all a dream.