Abstract: A body-support device for use as a mattress or cushion for hospital beds comprises an inner core (10) of soft, resilient plastics material having predominantly open cells, said core having two mutually opposite major surfaces (10a,10b) connected together by side surfaces (10c). Each major surface (10a,10b) is covered with a thin layer (11,12) of soft, resilient plastics material having predominantly closed cells, said thin layers (11,12) also covering at least two side surfaces of said inner core. The surfaces of the thin layers (11,12) remote from the core (10) are covered with a plastics foil (14,15). The uncovered side surfaces of the inner core serve to enable air to pass into and out of the inner core. The plastics foil provides the body-support device with a surface which can readily be kept clean. The thin layers (11,12) afford a better and stronger bonding of the plastics foil to the body-support device.