| 摘要 |
A mattress (1) comprises a sealed outer casing (2) within which is mounted a resilient support formed by a composite foam core. At least an upper portion of the resilient support is formed by a visco-elastic foam. A vent (4) is provided in a side wall (7) of the casing (2) and is covered by a filter (5) which prevents ingress of bacteria into the cover (2). A flap (6) is mounted on the cover (2) and in use extends down over the vent (4) to prevent the filter (5) being damaged by fluids. <IMAGE> |
