I thought there was a monster that I think was called baggy bones and he would steal your bones out of your body if you let your legs or arms hang off the bed. He stole them because his bones were missing and he needed some.
I also had dreams where a demon would be floating above me and I'd wake up so terrified that it was really there that I wouldn't be able to open my eyes for what seemed like eternity, but was probably 15 minutes or so.
A childhood belief about under my bed

others believed things like this
- Broken bones meant that your arm or leg was separated from your body.— Kelly Hanson
- I used to think that instead of bones and blood and tissue that you body was made up of tuna.— m.n
- I used to believe that when people broke bones, doctors would give them a new part of the body they broke. — Kelly
- My brother used to be scared to poop in the potty. He thought that he was pooping out his bones.— Lillyth
- When I was about 4 or 5, I used to believe that instead of bones, we had metal pipes. — TL
- I used to believe that the chunks in chunky peanutbutter were actually bonesAnon