Innovative high-density Memory Foam Rectangle Beds (PA) conform automatically to dogs' exact weight and shape. Foam returns to its original shape indefinitely without flattening or bunching. Recommended by veterinarians for older or arthritic dogs. Cushions pressure points that can cause muscle and joint stiffness that lead to discomfort and unrest. Gently cradles pets for the coziest, most supportive, therapeutic rest. Cover unzips for easy machine washing. Rectangular Memory Foam Beds are available in the colors and sizes listed below. Sized to fit our ProSelect® wire crates. Oval Memory Foam Beds are also available and sold separately.