Oral sleep apnea appliance

This application claims priority to U.S. design application Ser. No. 29/725,757 filed on Feb. 27, 2020.

FIG. 1 is a perspective view of oral sleep apnea appliance showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right view thereof; and,

FIG. 7 is a left view thereof.

The broken lines in the figures show portions of oral sleep apnea appliance that form no part of the claimed design.