My dog, Foo, sleeps in the center of the bed, too. She used a dog/cat bed on the floor of the office, but she wouldn't use it on the bed or even in a carpeted room. I just toss an old, sm fleece blanket on the bed and she woofs that up and makes a nest. Or sleeps with her head on our pillows.
That's a cute bed though and would work well for a cat or a dog.