This bed was much bigger than I expected. It comes with two mattress pieces, so I had a second cover made and now use it as two separate dog beds. I have a beagle who is about 30 pounds. Half the bed is more than enough for her. She likes this bed, but is more apt to pick a fluffy "cush-ier" if given the choice. We got the bed becuase the ved noticed some early stage arthritis.