As a child I was afraid of the dark and had a night light in my room. I couldn't sleep without it although its dim light probably gave the room a creepier look. I was sure there were monsters lurking under my bed and behind every nook and cranny but.. the trick was to hide completely under the bed covers, not even a finger showing, because the rule was that if you're completely covered the monsters couldn't get you! I have no idea where I got that rule or why I thought that the bed covers were such adequate protection..
A childhood belief about under my bed

others believed things like this
- I used to believe that if you slept with the covers covering your neck, vampires couldn't bite you. — Moot
- i believed that if you farted too much in a room and you were to light a flame your house would blow up— the nuclear fart
- I always had to sleep with my feet under the covers or else speed racer would drive over them.Anon
- i used to believe if i went to sleep monsters would get my family, so i thought i stayed up all the time— Luc Lemmel
- I used to believe that if i took the covers off at night i would freeze to death.— RockerGirl
- I used to think that if someone gave you acid, you could completely counter the effects by taking an antacid.— abracadaver