The 'Best' Place to Take a Nap?

Today was a long day for Mr Daxton. We went to a food show with my mother in law and sister in law,and between the huge crowd and chasing Dax, it was exhausting. On the way back we stopped at Costco. Dax was sleeping in the car, so I just laid out his blanket in a cart and put him on top of it. He stayed asleep for a minute. Then decided to peek every now and then.