上うわ筵むしろ

noun

thin padded mat laid on tatami

A thin cushion or mat placed on top of tatami flooring for added comfort or protection.

• 祖そ母ぼは座ざ布ぶ団とんの代かわりに上うわ筵むしろを使つかっていた。

  My grandmother used a thin padded mat instead of a zabuton cushion.