FIG. 1 is a front perspective view of a mattress in accordance with a first embodiment of the invention;
FIG. 2 is a front view of the mattress of FIG. 1;
FIG. 3 is a rear view of the mattress of FIG. 1;
FIG. 4 is a first side view of the mattress of FIG. 1;
FIG. 5 is a second side view of the mattress of FIG. 1;
FIG. 6 is a top view of the mattress of FIG. 1;
FIG. 7 is a bottom view of the mattress of FIG. 1;
FIG. 8 is a front perspective view of a mattress in accordance with a second embodiment of the invention;
FIG. 9 is a front view of the mattress of FIG. 8;
FIG. 10 is a rear view of the mattress of FIG. 8;
FIG. 11 is a first side view of the mattress of FIG. 8;
FIG. 12 is a second side view of the mattress of FIG. 8;
FIG. 13 is a top view of the mattress of FIG. 8;
FIG. 14 is a bottom view of the mattress of FIG. 8;
FIG. 15 is a front perspective view of a mattress in accordance with a third embodiment of the invention;
FIG. 16 is a front view of the mattress of FIG. 15;
FIG. 17 is a rear view of the mattress of FIG. 15;
FIG. 18 is a first side view of the mattress of FIG. 15;
FIG. 19 is a second side view of the mattress of FIG. 15;
FIG. 20 is a top view of the mattress of FIG. 15;
FIG. 21 is a bottom view of the mattress of FIG. 15;
FIG. 22 is a front perspective view of a mattress in accordance with a fourth embodiment of the invention;
FIG. 23 is a front view of the mattress of FIG. 22;
FIG. 24 is a rear view of the mattress of FIG. 22;
FIG. 25 is a first side view of the mattress of FIG. 22;
FIG. 26 is a second side view of the mattress of FIG. 22;
FIG. 27 is a top view of the mattress of FIG. 22; and,
FIG. 28 is a bottom view of the mattress of FIG. 22.