Papasan chair pillow (Victoria Hills)

I am looking for a papasan chair pillow/cushion, just the cushion please. I have an old Great Dane who is up in his years now. He is having a hard time getting up on the couch these days. His chihuahua sister just got a new round doggie bed and he is a bit jealous. Of course a doggie bed for his size is $ outrageous. After some brainstorming figured a papasan cushion would be a good fit for when he wants to curl up in the livingroom with us. Otherwise he is a spoiled, he has his own twin size bed. Thanks in advance.