FIG. 1 is a top perspective view of a mattress cushion showing my new design;

FIG. 2 is a top view of the mattress cushion shown in FIG. 1;

FIG. 3 is a bottom view of the mattress cushion shown in FIG. 1;

FIG. 4 is a front elevational view of the mattress cushion shown in FIG. 1;

FIG. 5 is a rear elevational view of the mattress cushion shown in FIG. 1;

FIG. 6 is an elevational view of the right side of the mattress cushion shown in FIG. 1;

FIG. 7 is an elevational view of the left side of the mattress cushion as shown in FIG. 1;

FIG. 8 shows an enlarged top perspective view of a portion of circled area A in FIG. 1;

FIG. 9 shows an enlarged top perspective view of a portion of circled area B in FIG. 1;

FIG. 10 shows an enlarged top perspective view of a portion of circled area C in FIG. 1; and,

FIG. 11 represents a cross-sectional view taken along cross-section line 11--11 in FIG. 2;

The two patterns partially shown in the rear and middle sections of the mattress cushion in FIG. 2, are understood to repeat uniformly throughout each of the two sections, respectively.