Pocket coil spring assembly including flexible foam

Abstract

A pocket coil spring assembly is provided that includes a coil spring having an upper portion and a lower portion collectively defining an interior cavity of the coil spring. The pocket coil spring assembly further includes a fabric pocket encasing the coil spring with a top area covering the upper portion of the coil spring and a bottom area covering the lower portion of the coil spring. A discrete amount of flexible foam is poured on the top of the fabric pocket such that a top surface of the flexible foam extends above the coil spring. A mattress assembly is further provided that includes the flexible foam dispensed in continuous or discrete amounts between rows of pocket coil springs.

What is claimed is: 
     
         1 . A mattress assembly, comprising:
 a spring core having a first support surface and a second support surface opposite the first support surface, the spring core including:
 a plurality of coil springs positioned in a matrix and extending in rows from a first end of the mattress assembly to a second end of the mattress assembly, each coil spring having an upper portion and a lower portion, the upper portion and the lower portion collectively defining a height of each coil spring, 
 a plurality of fabric pockets, each fabric pocket encasing one of the plurality of coil springs, and each fabric pocket including a top area covering the upper portion of each coil spring and a bottom area covering the lower portion of each coil spring, and 
 a plurality of amounts of a flexible foam each having a top surface and each positioned between the rows of the coil springs. 
   
     
     
         2 . The mattress assembly of  claim 1 , wherein the first support surface comprises the top surface of the plurality of amounts of the flexible foam and the upper portion of each coil spring. 
     
     
         3 . The mattress assembly of  claim 1 , further comprising an upper continuous sheet covering the upper portion of each coil spring. 
     
     
         4 . The mattress assembly of  claim 3 , wherein the flexible foam is positioned atop the upper continuous sheet. 
     
     
         5 . The mattress assembly of  claim 3 , wherein for each fabric pocket, a portion of the upper continuous sheet forms the top area of the fabric pocket. 
     
     
         6 . The mattress assembly of  claim 5 , further comprising a lower continuous sheet covering the lower portion of each coil spring. 
     
     
         7 . The mattress assembly of  claim 6 , wherein for each fabric pocket, a portion of the lower continuous sheet forms the bottom area of the fabric pocket. 
     
     
         8 . The mattress assembly of  claim 1 , wherein each of the plurality of amounts of the flexible foam is a continuous amount of flexible foam extending between the rows of coil springs. 
     
     
         9 . The mattress assembly of  claim 1 , wherein each of the amounts of the flexible foam is a plurality of discrete amounts of flexible foam positioned between the rows of the coil springs. 
     
     
         10 . The mattress assembly of  claim 9 , wherein each of the plurality of discrete amounts of the flexible foam has a convex top. 
     
     
         11 . The mattress assembly of  claim 1 , further comprising an upper body supporting layer positioned adjacent to the first support surface of the spring core; and
 a lower foundation layer positioned adjacent to the second support surface of the spring core.