Bed Base

FIG. 1 is a perspective view of a bed base showing my new design;

FIG. 2 is a front elevation view thereof, a rear elevation view being a mirror image of the front elevation view;

FIG. 3 is a left elevation view thereof, a right elevation view being a mirror image of the left elevation view;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines depict portions of the bed base that form no part of the claimed design.