Patent attributes
A foundation for a mattress is formed from one or more single-layer, unitary foam blocks with supports that extend across each foam block's bottom side. The supports provide crosswise support across a bed frame and can be directly attached to the foam block or may be provided in a kit or separately sourced. The foam block is rigid enough to support a mattress and is compressible so it has a compressed configuration and an expanded configuration, and its bottom side may have channels for the supports. In the compressed configuration, the foundation may be folded and vacuum-sealed in a plastic membrane which provides benefits for storing, shipping, and delivering the foundation. When the foundation is delivered to its place of use, the compressed foundation is removed from its packaging, allowing the foam block to return to its expanded configuration.
