I thought one couldn't (shouldn't?) pull one's blanket up past one's belly-button. So, I was cold from my belly up, until my mom told me otherwise.
A childhood belief about sleeping

others believed things like this
- I used to think that if i touched my belly button it would unfold and my belly would be inside out forever. Anon
- You couldn't have your belly button covered for too long or it would be harder for you to breathe.— Jess
- When I was a kid my dad told me that if you unscrewed your belly button your bum would fall off.— Ann
- I was told that your belly button is where you put salt when you eat apples in bed.— Shurnuff
- i was told that if you fiddled with your belly-button too much, my bum would fall off.Anon
- My dad told me when I was little that my belly button was "Where the Indian shot me"Anon