I used to believe that if you fall asleep with your hands on the outside of the covers, monsters would come and eat your fingernails.
A childhood belief about monsters

others believed things like this
- When I was a child i used to believe that if i did not fall asleep an elf would come for me Anon
- I used to think that when my arm would fall asleep that it was raining inside my armAnon
- when i was a kid, i used to think that if i didn't fall asleep, morning wouldn't comeAnon
- Whwn I was about 6 I used to think that if a crow bit you you would fall asleep for 100 years!— Lisa
- I used to believe that I would get worms if I bit my fingernails. — Leslie
- My Mom used to tell us that if you bit your fingernails, they would cut a hole in your stomach.— Linda B