Large Dog MattressFEATURES: ORTHOPEDIC SUPPORT: If your dog is older or has joint problems, consider an orthopedic dog mattress with memory foam or supportive padding to relieve pressure points and promote better sleep and comfort. CHEW RESISTANT: For dogs that like to chew or scratch, choose a mattress with a durable and chew resistant cover to prevent damage and ensure longevity. MATERIAL: Polyester and PP cotton are common materials used in dog mattresses. Polyester