Vacuum the Surface: Use an upholstery attachment to thoroughly vacuum the entire top layer, catching any dry particles, dust, or debris sitting in the quilted crevices.
Apply a Baking Soda Base: Lightly sprinkle baking soda across the stained area to absorb lingering odors and pull up surface moisture.
Spray with a Cleaning Solution: Mix 1 cup of 3% hydrogen peroxide, 3 tablespoons of baking soda, and a few drops of liquid dish soap in a spray bottle. Lightly mist the stained areas— do not saturate the mattress, as moisture trapped deep inside can breed mold.
Gently Scrub: Use a clean, soft-bristled brush or a damp microfiber cloth to work the mixture into the fabric in circular motions. Let it sit for 15 to 30 minutes.
Blot and Dry: Blot the area firmly with a dry towel to draw out excess moisture and lifted grime.
Vacuum and Air Out: Let the mattress air dry completely—a fan pointed at the bed or an open window speeds this up significantly. Once dry, vacuum away any leftover dry baking soda residue.