Last night my eldest DC (17) asked if I had any memories of floating down the stairs as a child. I do. Very vivid memories that I've never mentioned to anyone else. I don't know how old I was at the time, but we left that particular property (the memory is still clear in my mind's eye) when I was seven, so presumably it was prior to that.
DC also has their own memories of them floating down the stairs when they were young.
A quick Google suggests it's a common phenomenon, but it isn't something I'd come across before.
Obviously I can't possibly have floated down the stairs and it was probably a dream, but why on Earth do people remember that particular dream? It makes me doubt the reliability of my memory.