I fcking hate mirrors too (cuz ugly huehueheueheuheue, jk.) we have one huge ass mirror in one room and I never sleep there. Just, never... and when I'm alone at home, I lock the room. I won't say anything about looking into the mirrors in the dark. Even when I go caca-peepee at night, I avoid looking at it, cuz I don't really want to believe you,(cuz scared) however I used to sleepwalk when I was a child. Not that I did horrible things and stuff. It wasn't really a sleep walking, I travelled on my bed on four. Dropping on the floor sometimes. Glad it went away with time lol dangerous or not, it still sucked.and the story is very interesting. I think my brain kinda understood the part of what you meant by "they" and it isn't even long. Longest story I've seen (seen cuz didn't read it lul) in this section was one perverted noob author's, soham talele's novel
I REFUSE to sleep in a room with a mirror if I can help it. I have a mild phobia of mirrors, especially at night. I made the mistake of looking at myself in the mirror in a dark room and regret it to this day. In the dark, the shadows play and dance, and the thing in the mirror makes merry with your fears. I also slept walked when I was younger. One time I had a dream that team from Star Trek: DS9 were staying at my house and people were sleeping on the floor, so I was stepping over bodies that weren't there and was unlocking the door to let someone in. That was around 20 years ago, so I don't remember who. Also, you're very pretty, so there! <3