Whip Up a Soapy Mix: In your 16 oz spray bottle, combine water with approximately 1 teaspoon of liquid dish soap. Give it a shake to create a homogenous mix. Spritz this solution generously over the mattress. You might need a second bottle to ensure the mattress is well-covered. To be sure, give a quick patch test with your fingertips.

Introduce the Peroxide Magic: Empty out your spray bottle and fill it up with a 50-50 mixture of water and 3% hydrogen peroxide. Give it a good shake and then mist your mattress, paying special attention to any stubborn stains.

Baking Soda Sprinkle: While the peroxide solution still dampens the mattress, uniformly sprinkle baking soda over it. Around 2-3 cups should suffice. Using a fresh cloth, pat the baking soda, forming a gentle paste over the mattress.

Await the Magic: As the baking soda interacts with the solutions, you'll see stains begin to fade. This is the cleaning magic in action. Ensure the room is well-ventilated by cracking open a window, then let the mattress sit with the baking soda overnight.

Brush or Vacuum Away: Once the baking soda has dried out by the next morning, employ either a vacuum or a soft-bristled brush to clean off the residue. Voila! You now have a rejuvenated, stain-free mattress to enjoy.