when i was a kid we went camping every summer with our uncla and older nephews. My nephew Danny told us we should sleep with our mouths closed because if you don't, spiders fall/crawl in your mouth at night. every single year i didn't sleep a wink the first two or three nights.
A childhood belief about creepy crawlies

others believed things like this
- I used to believe that if I slept with my mouth open that spiders would crawl in there and live in my stomachAnon
- I used to believe that if I didn't brush my teeth at night, ants would crawl into my mouth and eat my teeth.Anon
- when I was about 7 I thought that aliens hid under my bed. I wouldn'd sleep in my bed for a whole year!— *Rachel*
- I used to believe that there was an off switch to the ocean so that it could go to sleep at night.Anon
- I used to believe when I was 5 that I was special because I couldn't get to sleep until 11pm at night — Carrie
- I, to this day, believe that when I can't sleep at night it means I'm awake in someone else's dreams... — Turner