Korea first floor hotel

Koreans, like Japanese, learn from China's ancient wooden beds, which are relatively hard, and gradually develop into tatami-like beds and put them directly on the ground. Watching Korean dramas 20 10 years ago, we know that they used to sleep directly on the ground under a quilt, and they were used to it since childhood, so there is nothing wrong with it. Sleeping on a hard bed is also good for the spine. I hope it can be adopted.