Sarah Handler, Ming Furniture in the Light of Chinese Architecture, Ten Speed Press, 2005
Most large beds have a canopy, which approximates the walls and roof of a house. Thus, a house within a house. The difference between them is not only size, but also function. The actual house has a floor to stand on. The house within the house was for sitting, sleeping, or making love and conceiving sons. Chinese beds are used for seating during the day and for sleeping at night.