I knew it was Simon when I found a dog on the sofa, even though only his butt was visible with his short hind legs sticking in the air; his body from his hind legs on was covered by a brown blanket which he had wrestled over himself (I have seen him do that before); and, when I peeled back the blanket, I saw that he had shoved his head completely under a soft red pillow with little wavy things on one side that resembled some kind of deep sea sponge. The pillow was up against the end of the sofa.
He is a very secretive creature when it comes to sleeping.