I once saw an illustration of Rip Van Winkle sleeping with his long beard outside the bedclothes. This led me to believe that women with large breasts did the same.
A childhood belief about sleeping

others believed things like this
- When i was young about 5 i used to think god was a donkey with a long beard!Anon
- My uncle harry has a very long beard and a hariy face. I used to think he was a wizard.Anon
- At nights, when I have trouble sleeping, I used to hear large footsteps - something like the Godzilla.— John
- Long grass with black seeds were really ant hotels, and the seeds were sleeping ants.— angelsheep
- I used to think that the priest at church was JESUS.
He had a beard.... it made sense— Joe B - How could Baby Jesus be born on Dec 25th, get tall, grow a beard and then die, all by Easter. Whew!— Joe