Bedding is a futon spread out on the tatami floor. The Japanese traditional floor mats tatami are used in various ways in tea offerings. Tatami mats and classic art furnish the rooms. Tana are used only tea rooms of 4.5 tatami mats or larger. The low camera positions are also reminiscent of sitting on a traditional Japanese tatami mat. Each sheet is about the size of one tatami mat. The entire structure may have a total floor area of only three tatami mats. In Japan, this rush is grown to be woven into the covering of tatami mats. This "kotatsu" came about with the popular use of "tatami" matting in Japanese homes. People seated at a chabudai may sit on "zabuton" or "tatami" rather than on chairs. When dining in a traditional tatami room, sitting upright on the floor is common. This dine style is quite similar with Japanese traditional tatami dine style. Chest armor was commonly made from karuta ("karuta tatami dou"). Guests have the option to reserve private orthodox tatami rooms. The use of tatami flooring has influenced the development of tea.