For quite long time (4-17) I believed that I must cross my fingers, legs, or arms in order to stay alive while sleeping. I imagined that if I just lay straight as a stiff, I will become one.
A childhood belief about sleeping

others believed things like this
- I used to think a female daddy-long-legs was called a "mummy-long-legs".Anon
- I used to beleive that all pains were headaches. So for example, I had headaches in my stomach, legs and arms.— James
- I once believed that one could run around the south pole in order to travel backwards and forwards in time.— kaibutsu
- Whenever my fingers wrinkled from staying in the pool too long, I thought I was aging faster.— The Mortal Elf
- i used to beleve that the sun had thin long legs and followd me wherever i went..— Hege
- I used to believe if you stayed in water too long your skin would get really wrinkled and stay that way.Anon