A couple months ago, before my latest birthday when I turned 14, I woke up in the middle of the night (not an uncommon thing for me). My door was shut, I was completely dark in my room, and I was right next to the wall. Nothing interesting had happened to me before bed, but when I woke up, I felt my heart stop for a second. Right in front of my face, a small cat was staring into my eyes. The cat was completely black, but he had a weird light outline so I could see him, and scraggly looking, like he just came off the street. His eyes were strangely large, and an amber/brown color.
As soon as I saw him, I took a swat at him, terrified out of my mind. I was even more frightened when my hand went through him. After that, he turned and quickly jumped to the edge of my bed and looked back at me one last time before he jumped to the floor. In my attempt to turn on my light, I hit my hand on my headboard, so I knew I wasn't dreaming. I got my light on, and there was no cat in my room. I already knew that it wasn't my pet black cat, Bo, since my door was closed, but I couldn't think of anything that could explain it. I stayed up for the next couple of minutes, trying to relax so I could get to sleep.
After that, I started to sleep with my door open and to go to bed before my mom so the light in the hall will be on. I haven't seen the cat since, but now my cat Bo comes in every other night and lays with me until I fall asleep. He usually will lay at the end of my bed and stare at my door, for no apparent reason. It's strange, but it also makes me feel better. This experience only seems to reinforce my belief that there's some sort of activity in my room.