FIG. 1 is a perspective view of a sleeper chair, showing my new design;
FIG. 2 is a front and top perspective view of a first piece of the sleeper chair;
FIG. 3 is a rear and bottom perspective view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a right side elevation view thereof;
FIG. 8 is a top plan view thereof;
FIG. 9 is a bottom plan view thereof;
FIG. 10 is a front and top perspective view of a second piece of the sleeper chair;
FIG. 11 is a rear and bottom perspective view thereof;
FIG. 12 is a front elevation view thereof;
FIG. 13 is a rear elevation view thereof;
FIG. 14 is a left side elevation view thereof;
FIG. 15 is a right side elevation view thereof;
FIG. 16 is a top plan view thereof;
FIG. 17 is a bottom plan view thereof; and,
FIG. 18 is another perspective view thereof, shown in an alternative position.
The broken lines in the figures illustrate portions of the sleeper chair that form no part of the claimed design.