Futon are supposed to be put away during the day in the closet called oshiire. In typical Japanese houses, one room is often used for dual purposes. During the day, a room can be used as workroom or guestroom after futon is stored in the oshiire.A traditional Japanese futon includes shikibuton (under futon) and kakebuton (comforters). Futon are made of various materials, such as cotton, wool, feather, down, and more. Different types of futon are used, depending on the season and personal preferences.
It is important to occasionally air out futon outside on sunny days to prevent mold from forming and to kill dust mites. You may ruin your futon if you keep them in the closet or spread on the floor all the time. Japan is humid, especially during the rainy season. Futon dryers (futon kansouki) are also available.