The Drive Medical Innerspring Mattress comes with inner springs that provide maximum comfort. These high-quality mattresses include a vinyl cover that is anti-bacterial, anti-static, and waterproof. The cover offers easy care and use. The mattress construction is high-density urethane foam with Premium Grade cotton, which gives this mattress its supreme durability and ultimate comfort. It features two brass side vents with screens to allow the mattress to breathe. It has a weight capacity of up to 250 pounds.