Mattress

FIG. 1 is a perspective view of a mattress, showing our new design; and

FIG. 2 is a front elevational view depicting a foot end of the mattress shown in FIG. 1 ;

FIG. 3 is a right-side elevational view of the mattress shown in FIG. 1 ;

FIG. 4 is a left-side elevational view of the mattress shown in FIG. 1 ;

FIG. 5 is a back elevational view depicting a head end of the mattress shown in FIG. 1 ; and,

FIG. 6 is a bottom plan view of the mattress shown in FIG. 1 .

The broken lines in FIG. 6 indicate portions of the mattress that form no part of the claimed design.