What is the height of tatami platform?

If you want to sleep Simmons on the tatami, the height is 35cm, the height is 50cm, and the width is 135cm to 150cm. As wide as the room, it can also be 2 meters long. Tatami is a kind of furniture woven from rushes, which can be laid on the ground for people to sit and lie down. It actually originated in China, and was called "stacked seats" in ancient times. During the prosperous Tang Dynasty, it was introduced to Japan and South Korea and was widely used.