Riana Sedac Roll Out Action Sofa BedCube buttoned back, raised on slim legs. The Riana, Emma's mechanism, statement design. The Riana shares the Emma's square armed silhouette and Sedac Epona roll out action, with two design changes that lift it into the premium tier. The back cushions are deep cube buttoned in a regular grid, six panels per cushion, set into a tightly stuffed surface that catches shadow from every angle. The frame sits on slim tapered light wood legs at every corner,