This actually happened 2/3 years ago but I still remember it like it was yesterday and it freaks me out everytime.

I went to sleep in the afternoon because I was feeling particularly tired. So I get on my bed, put on my headphones and listen to some good music to help me fall asleep faster. I eventually fall asleep and after a while I dreamed about waking up and taking my phone to change the song - and I am 100% sure that I was still sleeping, you'll see why later. After I played the song on YT, the video became a sort of TV static and 2 dark silhouettes appeared on my screen. Meanwhile I started hearing a low rumble, as something heavy was approaching, and my vision became blurry.

Then I ACTUALLY woke up and... it all starts here.

A loud screech/whistle kind of noise was now ringing in my ears, I felt like I couldn't move my body, speak, breathe and my eyes were watering. I look around me trying to escape and I see the same 2 silhouettes right by my bed. I remember that both of them had really big fedora-like hats and long coats, long hair, and one of them was taller than the other. I couldn't even see their face, only their shape and their shiny white eyes. As soon as I saw them, they started to approach me and act as they were trying to wrap me into their coats. Suddenly I woke up, my heart was racing and the two shadows disappeared and the ringing stopped.

That was really traumatising for me as it was my first SP experience (and luckily my last one until now). The thing is, even if a long time has passed I can still see the shape of the two "creatures" vividly if I think about this episode.