Bed (1980) started as a drawing. I lay on the floor and my wife drew around me. I made this silhouette into a contour map, making an approximation of the volume of my body divided into two identical halves: mirror images of each other. The piece is roughly the same size as a king-sized double bed. I began a programme of eating that lasted three-and-a-half months, during which I ate my own volume in bread.