Futons are traditional Japanese bedding. A futon is a padded mattress, called a "shikibuton", a quilt, called a "kakebuton", and a pillow filled with beans, called a "makura". The futon was put on the floor at night for sleeping. They could be easily rolled up during the day when they were not needed. The word "futon" has come to mean a lot more than this. Although many Japanese people sleep in a bed, they say "I sleep on futon"; it means to go to bed. Futon now means things that Japanese people sleep on, including beds.