Pillow supplement

FIG. 1 is a top, front, right side perspective view of the design, according to the invention;

FIG. 2 is a bottom, front, right side perspective view of the design of FIG. 1 ;

FIG. 3 is a top view of the design of FIG. 1 ;

FIG. 4 is a bottom view of the design of FIG. 1 ;

FIG. 5 is a front view of the design of FIG. 1 ;

FIG. 6 is a rear view of the design of FIG. 1 ;

FIG. 7 is a right side view of the design of FIG. 1 ;

FIG. 8 is a left side view of the design of FIG. 1 ; and,

FIG. 9 is a top, front, right side perspective view of the design of FIG. 1 , in an environment of use.

Broken lines illustrate environment and form no part of the claimed design.