Replaceable Foam atop Mattress Spring Unit Contained within Constricting and Expanding Fabric Cover with Zipper which Opens and Closes Cover

Abstract

This invention is a new mattress design. A replaceable foam unit containing the user's chosen firmness, or two different levels of firmness, one level being on the top of the unit, and the second firmness being on the bottom of the unit, sits atop a standard spring unit. The replaceable foam unit and standard spring unit are encased and held firmly together by a constricting and expanding fabric cover. A zipper on the cover allows for the cover to be opened, revealing the replaceable foam unit. The replaceable foam unit can then be flipped so that the second level of firmness faces upwards, and the user can experience a brand-new level of firmness. Or, the replaceable foam unit can be removed completely and replaced by a new replaceable foam unit, thus eliminating the need to replace the standard spring unit once disposal of a user's bed becomes necessary.

1 . An apparatus for an individual to sleep or lay on, the apparatus comprising of a replaceable foam unit sitting atop a standard spring mattress unit, wherein the replaceable foam unit and spring mattress unit are encased in an expanding and constructing fabric cover, said cover having a zipper that, when zipped, fastens the replaceable foam unit firmly atop the mattress spring unit. 
     
     
         2 . Said replaceable foam unit described in  claim 1  further comprising of either a single replaceable piece of foam consisting of one firmness, or two pieces of replaceable foam consisting of two levels of firmness, whether the two pieces of replaceable foam are fused back-to-back or fused and separated by a piece of High Density (HD) Foam. 
     
     
         3 . Said expanding and constricting fabric cover described in  claim 1  may be comprised of additional padding that would lie atop the replaceable foam unit.