Medical mattresses, also called therapeutic surfaces, are designed for users with reduced mobility, chronic illness, disabilities, aging, or who spend extended durations in bed such as people recovering from surgery or injury. Many medical mattresses are designed to prevent and relieve pain from pressure ulcers/bedsores and other conditions that occur from using a traditional mattress. Medical mattresses are designed for either prevention or treatment and may be made from foam, innerspring, air, gel, or a combination of these systems.