Human: What's a good way to clean a soiled mattress? Assistant: 
A good way to clean a soiled mattress is to vacuum it first, then use a mild detergent and warm water to gently scrub the surface. Rinse off with a damp cloth and air dry. For more stubborn stains, you can use an enzyme-based cleaner or bleach diluted in water. Be sure to test any cleaning solutions on an inconspicuous area of the mattress before using them on the entire bed.