An Edwardian bed is a bedstead frame - head end, foot end and side rails - made in inlaid mahogany, panelled oak or tubular brass and iron, for English bedrooms of roughly 1900 to the 1920s.
Modern sizing has crept in: 'king' appears in fifty-three Edwardian bed titles on Sellingantiques and 'super king' in fourteen, with 5ft and 6ft widths stated outright.