noun
kotatsu quilt; quilt coverlet for a kotatsu
A thick quilt or blanket placed over a kotatsu frame to trap heat underneath.
See also: こたつ
寒くなったので、こたつ布団を出した。
It got cold, so I took out the kotatsu quilt.
新しいこたつ布団を買い替
I want to replace the kotatsu quilt with a new one.