Vacuuming is the only recommended cleaning method for a mattress. If you are determined to tackle a stain, use a mild soap with cold water and apply lightly.
Do not ever soak a mattress or foundation. If water is used, let the mattress air out and dry thoroughly.
Do not dry clean your mattress. The chemicals in dry cleaning agents and spot removers may be harmful to the fabric or underlying materials in your mattress.
Because mattresses that are stained or in an unsanitary condition void the manufacturer’s warranty, it is recommended that you use a protective covering such as a good quality, washable waterproof mattress protector to keep your mattress fresh and free from stains and soiling.