Canine Creations Orthopedic Balleny Tip Dyed Mink Quilted Mattress Style Pet Bed The ultimate in support and comfort, these couch style beds are filled with ORTHULUX tm Made from a unique blend of orthopedic foam and polyester fiber that supports arthritic joints and ailing muscles while nurturing any size dog The large sleeping surface contains 4 separate filled chambers to create the mattress top you expect from your own bed Lock stitch seams and durable woven fabric resist tears Zipper cover removes easily for machine washing and drying