A new word!

Just before Mothers’ Day I was reading a book about moms to to a three-year-old boy.  All of the mothers in the book were animals taking care of their young.  One page had owls, skunks and raccoons on it, and I said that all those animals were nocturnal, they are awake at night.

Boy: I’m ‘turnal.”

Me (mystified):  “Do you mean you’re ‘nocturnal?'”

Boy: “No, I’m ‘turnal.’  I go to bed at night!”