Patent ID: 6889398

Claim:
A mattress comprising: a coil spring comprising first and second major opposed surfaces; at least one first foam pad at least partially overlaying the first major surface; the first foam pad comprising open celled foam material capable of compression in response to the application pressure and expansion upon the relief of pressure; a container comprised of a flexible material which contains and seals the coil spring and first foam pad within the container, the container being heat sealed to form a welded seam that is positioned at an elevation that is above one of the first and second major surfaces and below the other of the first and second major surfaces when the mattress is horizontal; a valve coupled to the container and operable to permit the selective passage of air into the container to expand a compressed mattress; at least one second foam pad at least partially overlying the second major surface, the second foam pad comprising open celled foam material capable of compression in response to the application of pressure and expansion upon the relief of pressure, wherein the second foam pad is also within the container; comprising at least one first intermediate layer disposed at least partially between the first foam pad and the first major surface and at least one second intermediate layer disposed at least partially between the second foam pad and the second major surface and; a first support comprised of open celled foam material so as to be compressible, the first support at least partially surrounding the coil spring and spacing the welded seam from the coil spring.