Japanese tatami unique shops to thin straw mattresses to wheat and rice straw produced, the standard thickness of 55 mm, usually divided into several layers, the bottom can be moisture-proof.

• 榻榻米是日本独有的铺地草垫，以麦杆和稻草制成，标准厚度为55毫米，通常分为数层，底层可防潮。