Sleep mask

Description

FIG. 1 is a rear perspective view of a sleep mask showing the new design, the dashed lines form no part of the claimed design;

FIG. 2 is a front view thereof, the dashed lines form no part of the claimed design;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof, the dashed lines form no part of the claimed design;

FIG. 5 is a right side view thereof, the dashed lines form no part of the claimed design;

FIG. 6 is a top view thereof, the dashed lines form no part of the claimed design; and,

FIG. 7 is bottom view thereof, the dashed lines form no part of the claimed design.

Claims

The ornamental design for a sleep mask, as shown and described.