I claim the ornamental design for a tooth pillow, as shown and described.
FIG. 1 is a perspective view of a tooth pillow, showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left-side elevational view thereof;
FIG. 5 is a right-side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines illustrating a bow tie and eye lashes depict environmental matter, and form no part of the claimed design. The remaining broken lines represent stitching, and are part of the claimed design.