Only in the case of a bedroom for the empress, a black-lacquered podium called 'hamayuka,' whose size is 30 cm high and 273 cm square, is set up on the floor.
寝床には、皇后の場合のみ「浜床（はまゆか）」という高さ1尺、四方9尺の黒塗りの台を置く。