An alternating pressure mattress is a medical pad made from inflatable air cells. This product lays on top of a traditional mattress or hospital bed and is made up of multiple air cells. It connects to an electric powered pump that inflates and deflates at a specific rate that you select. This redistributes the pressure on a person's body to help stimulate blood flow, prevent bed sores, and reduce the risk of skin breakdown. An alternating pressure pad is ideal for people who are confined to bed, since laying in one spot for an extended period of time can greatly reduce blood circulation and lead to pressure sores. Alternating pressure mattresses are suitable for use in hospitals and at home.