| 摘要 |
<p>A mattress (1) with superimposed layers of foamed and flexible plastic material, which is characterized in that it comprises a first layer (2) of uniform thickness with which two wedge-shaped elements (3,4) are associated; the wedge-shaped elements have a thickness which increases from the center towards the opposite ends of the mattress and form a hollow, the first layer (2) and the wedge-shaped elements (3,4) being made of plastic material having softness and elasticity characteristics; the mattress is further characterized by a second layer (6) of uniform thickness, arranged above the hollow and constituted by a foamed and flexible plastic material having low memory. <IMAGE></p> |
