Therapeutic 5-Zone support mattress is ideal for the prevention and treatment of bed sores. The medical mattress features a cross-cut foam design that's meant to reinforce pressure redistribution while providing comfort and optimum support to patients. The unit is best known for its durability and high customer satisfaction rate. It has a 2-way stretch nylon cover that's not only water-resistant but also vapor permeable. This reduces the instances of friction that causes skin maceration in users. The hospital bed mattress can support a person weighing up to 275 lb.