There is a painting by William Blake depicting a hag/imp like creature sitting on the chest of a naked sleeper. I believe it's meant to be a representation of the experience of sleep paralysis. My google is failing - does anyone know the title of the painting? [more inside]
I woke up with a song in my head in the style of the fall and the chorus went like this: "I think I just saw a pterodactyl... I think I just saw pterodactyl". Does this song exist, or did I just imagine it?