FIG. 1 is a top, front, and left side perspective view of a sacrum cushion showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof, the right side not shown is a mirror image thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a horizontal sectional view through the center of FIG. 2.

The bottom of the design is flat.