A babysitter once told me that once I was in bed I had to have the covers cover every inch of me, because at 9pm the skin monster would come and eat anything that was exposed. I did this until I was 12. And habitually, still do it.
A childhood belief about under my bed

others believed things like this
- I used to believe that if I farted in bed, a monster would pop out through the covers and tickle me.Anon
- In 'Call Me Maybe', I misheard 'Ripped jeans skin' as 'Rich cheese skin'. — Carly Rae Cheddar
- When I was little, I used to believe that people REALLY DID need a pinch to grow an inch.— Marjorie McNaughton
- i used to believe that everytime you hiccupped, your pine shot up an inch; making you taller— adria
- I was told that if one doesn't cover their mouth when yawning that their soul would escape.Anon
- I thought the boogey monster was a monster that ate boogers at night in front of youAnon