We sometime place cushion on chair not to be cold or not feel hardness of the seat.
The cushion is called Zabuton and we sometimes bring it to school or work.
As we go to public space, we sometimes see the Zabuton on public chair such as seats in station.
The seats in station is in outside so it gets cold, so somebody, maybe the station man places the Zabuton for customers.
It makes us warm not only physically but also mentally.