The present invention discloses a permeable mattress, or permeable pillow, which includes a base (1). Cushioning support (3) are attached to the top of the base in a distributed manner, to support a mesh (4) which supports a person, or person's head. Adjacent to the mesh there may be one or more layers of each, or any, of the following; permeable fabric, permeable foam, permeable fibres or perforated rubber. The mattress may be covered in a layer of permeable fabric (6). Any of the layers may be removably attached to the mattress assembly. In a further embodiment of the invention, beneath the base of the mattress, or integral with the base, there may be provided a spill tray that has a contoured structure, to guide fluids such that they flow under gravity into a collecting bowl.
