Guest Futon Mattress - Cotton

Last year, I purchased a futon for guests from a local futon specialty store for around 16,000 yen. I've only used it once and it takes up space in my closet, so I'm selling it. I believe there is almost no sign of use or dirt. 197 x 92 x 14 cm. The outer fabric is luxurious and has a calm color. I would be grateful if someone could make use of it.