Conformable support systems for conforming to a body are described in which a support assembly may be provided to support particular regions of the body where pressure ulcers tend to form. The conforming support may generally comprise a central portion, a first side portion attached to the central portion, and a second side portion attached to the central portion opposite to the first side portion. Each of the chambers are in fluid communication with one another such that a pressure applied upon the central chamber reconfigures the support assembly from a flattened configuration to an angled configuration in which fluid or gas within the central portion is urged into the first and/or second portions such that the side portions pivot to a predetermined height and angle relative to the central portion and form a conforming channel sized to support a region of a patient body
