1A shikibuton — a Japanese-style mattress placed on the floor for sleeping.
和室には敷き布団を敷いて寝ることが多い。
In Japanese-style rooms, people often sleep on shikibutons laid out on the floor.
敷き布団は定期的に干して風を通した方がいい。
It's better to air out the futon regularly by hanging it to let it breathe.
掛け布団と敷き布団を用意して寝室を整えた。
I prepared a duvet and a shikibuton to set up the bedroom.