The ornamental design for a bowl cozy, as shown and described.
FIG. 1 is a perspective view of a bowl cozy showing my new design.
FIG. 2 is a side view thereof.
FIG. 3 is a top plan view thereof.
FIG. 4 is a bottom plan view thereof.
FIG. 5 is a second side view thereof; and,
FIG. 6 is a perspective view thereof with a bowl shown in broken lines for illustrative purposes only.
The broken lines in FIGS. 1-6 represent stitching while the additional broken lines having longer segment lengths in FIG. 6 represent a bowl. The broken lines in FIG. 6 are for illustrative purposes only to show the bowl and form no part of the claimed design.