Cars?

Deakan loves his "Cars" characters. One night Deakan would not go to sleep after checking on him 3 hours after I put him to bed I found him in his play room with his clothes off playing with his cars. I told him he needed to go to bed and he said "my cars aren't gong to sleep." I said yes they are and you need to too. He then informed me that his cars were not sleeping because their eyes were still open. I told him that cars are different than us and that they can sleep with their eyes open. He thought about this for a moment and then said "oh cars are different because they don't have feet, leggs, pee pee's, and necks so they can sleep with their eyes open, not like us." I said yep you got it and now you can go to sleep!