Sockturnal Effect

The phenomenon of going to bed with both socks on, and waking up with one sock completely off and the other sock completely on.

A) Dude! I fell asleep with both socks on, but I woke up with only one. I think I've been robbed by the sock gnomes!

B) Ahh, twas simply the sockturnal effect my friend. Every one knows that there are no such thing as gnomes.