Prevue Pet Therapeutic Dog Bed. Prevue Pet therapeutic pet beds are a great way to help keep your dog comfortable while supporting there joint health. Design for small to large dogs these beautiful grey beds will fit nicely into any home décor. Design to look like a sofa for your dog it will bring elegance and class into any room they are placed into. Available in the following sizes: Small: 20 x 16 x 4.5" Large: 30 x 20 x 5"