The ornamental design for a foot covering for mattress, as shown and described.
FIG. 1 is a top and rear perspective view of the foot covering in accordance with a first embodiment of the Design mounted to a mattress;
FIG. 2 is a right side view of the foot covering of FIG. 1 mounted to a mattress;
FIG. 3 is a right side view of the foot covering of FIG. 1 mounted to a mattress;
FIG. 4 is a top and rear perspective view of the foot covering of FIG. 1 in a mattress mounting position;
FIG. 5 is a top and front perspective view of the foot covering of FIG. 1 in a mattress mounting position;
FIG. 6 is a top plan view of the foot covering of FIG. 1 in a flat position;
FIG. 7 a bottom plan view of the foot covering of FIG. 1 in a flat position;
FIG. 8 is a right side view of the foot coveting of FIG. 1 in a flat position;
FIG. 9 is a left side view of the foot coveting of FIG. 1 in a flat position;
FIG. 10 is a front view of the foot covering of FIG. 1 in a flat position;
FIG. 11 is a rear view of the foot covering of FIG. 1 in a flat position;
FIG. 12 is a front view of the foot covering of FIG. 1 in a partially open position;
FIG. 13 is a partial, top and rear perspective view of the foot covering of FIG. 1 mounted to a mattress and in its environment; and,
FIG. 14 is a top and rear perspective view of the foot covering in accordance with a second embodiment of the Design mounted to a mattress.
The ornamental Design which is claimed is shown in solid line. The broken lines form no part of the Design. The mattress shown in the Figures in broken lines is not part of the Design. The partial view of FIG. 13 shows the Design in its environment, the environment is represented in broken lines. The short wavy lines on the Design form no part of the Design and are provided to illustrate random wrinkles on the material of the foot covering.