Mattress

FIG. 1 is a perspective view of a mattress as viewed from a left side thereof. FIG. 2 is a front elevational view of the mattress shown in FIG. 1 . FIG. 3 is a rear elevational view of the mattress shown in FIG. 1 . FIG. 4 is a top plan view of the mattress shown in FIG. 1 . FIG. 5 is a left side elevational view of the mattress shown in FIG. 1 ; and, FIG. 6 is a left side elevational view of the mattress shown in FIG. 1 .