Patent ID: 9392877
Filing Date: 2016-07-19
CPC Classification: A47C,D04H,D10B,Y10T

Claim Text:
1. A mattress comprising: a spring core assembly including a plurality of coil springs, the spring core assembly having a length, width, and a height, wherein the outermost coil springs provide a spring core assembly perimeter, wherein the coil springs provide a first spring rate in a direction of a height of the spring core assembly; and a polymer structure comprising polyester fibers interlinked with one another, wherein the polymer structure is arranged outside of the outermost coil springs, wherein the polymer structure provides a second spring rate in the direction of the height of the spring core assembly, wherein the second spring rate is an increased spring rate in the direction of the height of the spring core assembly relative to a polymer structure comprising only randomly oriented fibers, wherein, when the mattress is in an assembled condition, the polymer structure is arranged at the spring core assembly perimeter to provide a monolithic perimeter rail without any of the plurality of coil springs.