My aunt lived in Stevenage (in the UK, England), I must have been around 9 years old, I'm 24 now. My cousin had a room at the top of the square spiral staircase. I was on a mattress on the floor in the corner of the room, there was an old tele on a tall stand at the end of the mattress and the door was to my right across the room, it was a fairly big room. It had white/cream fluffy carpet. (I remember because when they first moved in, me and my cousin was rubbing our feet on it, admiring the comfort of it).
Well anyways, I awoke from a dream of my brother punching me, I bolted awake. The tele turned on or off (I can't be sure), then, the handle of the door started going down by itself, I just sat there wide eyed staring at the door, it then opened about half way. Then I heard rubbing on the carpet (reminded me of when we first moved in, a similar sound, like a shuffle). I heard whispering out in the hallway (though, my imagination and thoughts and heart was racing at this point, so I could have imagined this bit) - I heard 'Nan' echoing up and down the hallway.
I don't know how, but after what felt like forever, I built up the courage and legged it (ran) down the stairs. No one believed me until the (not sure which one, but one upstairs) slammed in my dad's face on another occasion.