Foam mattress with central core - has foam top and bottom layers, covering cavities in grid shaped core

摘要

The mattress incorporates a central core-part (2) which is grid-shaped with cavities (5) in it extending from top to bottom. One or both surfaces of the core part (2) are covered by foam layers (3,4). The cross section of the cavities (5) in the core part (2) can vary depending on their position with regard to the person lying on the mattress.