My daughter in law told me that she was packing some clothes for an overnight trip to visit some friends. Our 4 year old granddaughter was watching her mother pack and noticed she put in a pair of pajamas.
"Why are you packing pajamas?" she asked.
"Mommy and daddy always wear pajamas when we sleep," she replied.
Emily thought for a moment and said, "Grandmother and Grampa don't wear pajamas, they sleep naked!".