Squirrel Medical™ specialise in the research, design and manufacturer of a range of specialist mattresses. These are used for the managed prevention and treatment of pressure ulcers, (formerly known as bedsores). Squirrel Medical™'s support surfaces include pressure reducing mattresses, which use a static (non-moving) foam construction as well as an innovative range of pressure redistributing mattresses. Pressure redistributing mattresses otherwise known as active mattresses use a series of air filled chambers to alternate the interface pressures that are exerted upon skin tissue. Active mattresses are recognised as an effective aid in the prevention treatment of pressure ulcers.