Pet Dreams Ortho-bliss 100-Percent Memory Foam Dog Bed Memory foam molds to body heat & weight, relieving pressure points & improving circulation: recommended for older dogs, large dogs & arthritic dogs. Ortho Bliss memory foam dog beds are clinically proven to provide greater support for your dog than egg crate foam & are filled with memory foam clusters. High quality pet bed cover is machine washable. Clinically proven to provide greater support for your dog compared to egg crate foam Veterinarian recommended Patent pending interior channels keeps memory foam clusters in place Memory foam molds to body heat & weight, relieving pressure points & improving circulation: recommended for older dogs, large dogs & arthritic dogs. Ortho Bliss memory foam dog beds are clinically proven to provide greater support for your dog than egg crate foam & are filled with 100% eco-friendly memory foam clusters. High quality pet bed cover is machine washable.