Blue Foam

 "Blue Foam " typically refers to a type of high-density polyurethane foam that is blue in color. This foam is commonly used in mattresses, cushions, and upholstered furniture due to its durability, support, and comfort. The blue foam is often part of a multi-layer construction in mattresses, where different foams of varying densities and properties are used to achieve the desired balance of comfort and support. The color blue is sometimes used to differentiate it from other types of foam with different properties or densities, which may be colored differently for easy identification during manufacturing.