How to Clean a Futon: 1. Rotate the Mattress Rotate your futon mattress regularly. Depending on the type of futon mattress you have, you may have to rotate the mattress more often. Rotating your futon mattress will keep it from developing sink spots and give it a longer life. When you first purchase your futon, rotate the mattress on a regular basis during the first 30 days to ensure optimal weight distribution. 2. Get Rid of Surface Stains Use a damp washcloth, warm water, and mild laundry detergent to remove any unsightly surface stains. Avoid soaking the mattress; too much moisture can lead to mildew. 3. Deodorize Unfold the futon so the mattress is flat and sprinkle baking soda over the mattress. Let it sit for about an hour while the baking soda absorbs odors, then vacuum it off. For a deeper cleaning, you may be able to use a steam cleaner to deodorize your futon; check your manufacturer's instructions regarding the use of a steam cleaner on the mattress. For a quick refresher between cleanings, you can use household spray fabric freshener. 4. Air Out the Mattress Leave your futon unfolded without a cover or any bedding for an hour or so. This will give the mattress time to air out. You can also use a fan to help circulate the air while you're airing it out. 5. Vacuum Vacuuming your mattress on a regular basis throughout the month will help keep it free of dust and dust mites. If you leave it folded up in the sitting position while you vacuum, make sure to get in the cracks with the brush attachment. King Size: 180cm x 200cm (70.9" x 78.7") Type: Bedroom Futon, Living Room Futon, Tatami Mat Cover Material: 100% Polyester Fibre | Filling Material: 100% Microfiber Pattern: Solid Color | Craft: Reactive Printing, Quilting, Binding Season: Spring, Summer, Autumn and Winter | Style: Modern, Casual, Kids, Teens, Adults