When I was younger, I used to believe that if I was in by bed with the covers on, no robbers or monsters could get me. Even today I'll turn off my light and run quickly to the bed and slide under the covers.
A childhood belief about under my bed

others believed things like this
- I used to believe that if i took the covers off at night i would freeze to death.— RockerGirl
- I used to believe that undercover cops hid under covers/sheets. — Holly
- I used to believe that if I farted in bed, a monster would pop out through the covers and tickle me.Anon
- my sister used to tell me that manhole covers were direct portals to hell.— autumn
- I always had to sleep with my feet under the covers or else speed racer would drive over them.Anon
- I used to believe that if you slept with the covers covering your neck, vampires couldn't bite you. — Moot