A folding pet bed includes a frame with a top face and a bottom face and includes: a spine; a first and second frame plates coupled to the spine to form rotating joints; the first and second frame plates including flexible arms, where each of the flexible arms includes a first end fixably coupled to the corresponding frame plate and a second end not fixably coupled to the corresponding frame plate; and a plurality of casters coupled to the second ends of the flexible arms at the bottom face of the frame. The pet bed further includes trays coupled to the frame plates at the top face of the frame upon which a pet may rest. The trays may be rotated toward each other to place the pet bed in a folded position for easy movement and storage.