A futon refers to a type of flexible furniture consisting of a traditional Japanese mattress called a shikibuton along with a quilted cover, referred to as a kakebuton. In its traditional form, a futon is made up of layers of cotton or other natural materials which can be rolled up and stored away during the day, making it versatile and more space-efficient. However, in Western countries, the term futon often refers to a sofa or couch that can be converted into a bed by unfolding the seating cushions to lie flat, creating a sleeping surface. Modern futons typically feature a wooden or metal frame with a foldable mattress and are commonly used for multi-functional furniture arrangements in small spaces. A thin mattress of tufted cotton batting, placed on the floor or on a raised, foldable frame.