Patent ID: 8037562
Filing Date: 2011-10-18
Classification: A47C

Abstract:
1. A mattress comprising: a core foam layer having a first indentation force deflection at twenty five percent compression, a first density and a first thickness; a top outer foam layer having a second indentation force deflection at twenty five percent compression, second density and a second thickness; a first intermediate foam layer intermediate and coextensive with the core layer and the top outer layer and bonded to the core layer and the top outer layer; and having a third indentation force deflection at twenty five percent compression, a third density and a third intermediate thickness; wherein the first indentation force deflection is greater than the third indentation force deflection and the third indentation force deflection is greater than the second indentation force deflection; and wherein the relationship of first indentation force deflection, second indentation force deflection and third indentation force deflection is defined by the relationships: wherein A represents the second indentation force deflection, B represents the third indentation force deflection and C represents the first indentation force deflection.