Lemon juice is a great matteress cleaning product. You can buy lemon scented cleaners at the store, or mix a half cup lemon juice with cold water for a bleach like chemical reaction with most matterss fabric stains. Always blot the stains, or else they will spread and at the very least you will encounter a ring of ugly brown water spots after the area has dried.Mild white powder detergent is good for matteress cleaning, too. Be sure to use white powder detergent and not a liquid blue, it may stain the matterss worse.