Sofa Bed

FIG. 1 is a front, right, top perspective view of a sofa bed, showing my new design;

FIG. 2 is a rear, left, bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of detail 9 in FIG. 6 ; and,

FIG. 10 is a front, right, top perspective view of its reduced scale in an alternate configuration.

The dashed broken lines in the figures are for the purpose of illustrating portions of the sofa bed and form no part of the claimed design.

The dash-dot-dash broken lines are for notating enlarged views and form no part of the claimed design.