Snooza Ortho Dog Lounger has low profile one-piece mattress which is beautifully contoured allowing pets to lounge comfortably while the gentle rises allow them to rest their heads to keep an eye on their surroundings. Ideal for elderly or arthritic dogs who may may have trouble rising from higher beds. specially corrugated foam distributes weight effectively taking pressure off sensitive areas while promoting airflow throughout the mattress. Finished in stylish charcoal furnishing grade fabric and a super soft plush top this bed is fully zippered to make washing a breeze.