Platform with Cushion

FIG. 1 is a front, left, top perspective view of the platform with cushion, according to my new design; FIG. 2 is a front elevational view thereof; FIG. 3 is a rear elevational view thereof; FIG. 4 is a left side elevational view thereof, FIG. 5 is a right side elevational view thereof; FIG. 6 is a top plan view thereof; and, FIG. 7 is a bottom plan view thereof. The broken lines depict portions of the platform with cushion that form no part of the claimed design. The claimed design is shown with symbolic breaks. The appearance of any portion of the platform with cushion between the symbolic break lines forms no part of the claimed design.