* Cultural tradition: The practice of sleeping and sitting on mats is deeply rooted in Japanese culture and has been passed down for generations. It is seen as a way to stay close to the earth and nature and to live in harmony with one's surroundings.
* Climate: Japan has a humid climate, and sleeping and sitting on mats on the floor can help to regulate body temperature and keep people cool.
* Space-saving: In Japan, living spaces are often small, so sleeping and sitting on mats on the floor can help to save space.
* Comfort: Many people find that sleeping and sitting on mats on the floor is comfortable and relaxing. The mats are typically made of natural materials, such as straw or tatami, which are breathable and provide good support.
In recent years, Western-style furniture has become more popular in Japan, but many people still prefer to sleep and sit on mats on the floor. It is a practice that is deeply rooted in Japanese culture and offers many benefits.