I do not know what you would consider my experience. Maybe a brief psychotic episode.
I was in 5th grade, and we had just moved homes. I’m sleeping in a bed that now maybe I’ve been sleeping in for the past 6 mo, and its the middle of the night. For some reason, I woke up, and when I sat up in bed, the entire room was lit up red. Like bright red. There was a monkey-ish looking being hovering near the ceiling with a drum, and there were other characters in the room too which I dont think I got a good look at. I do recall the monkey and its pretty vivid - I saw the face and all, and I internally screamed and went back under the covers. I would have ran out of the room, but hallway was red too. Under my covers my eyes were closed tightly shut, I was shivering, and for a while I was dead still. When nothing was touching me, and I wasn’t hearing anything, I opened my eyes slightly to see if I could see light coming through the covers, but it was dark. I took one peek from under my blanket - room totally dark, and no monkeys. I just closed my eyes again, kept myself under the blanket, and at some point I fell asleep. Woke up the next morning and told my mother, and as usual, she didn’t take me seriously. 
Never happened again, and yeah it could have been a dream, but I was definitely awake when it happened.