I had to purchase a new pet bed for my dogs because they chewed and demolished their other beds. They have tried to chew this one, too, a habit I'm trying to break them of, but I keep a close eye on them in hopes of preserving the bed.
This DreamBoat bed is really soft and comfortable. It has walls all the way around it, with a lower wall in front so that your pooch can climb in and out easily. It is machine washable, a plus. It also offers great head and neck support for your pet. I have the medium size, 27 x 22 inches. I must say that this is one of the most plush beds I have seen for dogs. The one I chose is a brown and tan color, Walmart also offered it in a green and brown color.
The seat cushion of this bed is very well padded, making it an extremely comfortable bed. I think it would be great for an older dog with arthritis, as it offers so much softness for the dog to lie on.
I really like this bed and I know the pups will love it, too, if I can just keep them from using it as a chew toy.