Get Stains Out of a Mattress! 3 Tablespoons Baking Soda 8 ounces Hydrogen peroxide 1 drop dish soap Mix together well and use right away. My mom discovered that if it is not mixed well the baking soda will clog the sprayer. You also can't store this apparently it doesn't last in the bottle and it is no longer effective due to the active nature of these ingredients.
How to Clean Urine from a Mattress: Mix a 2 to 1 ratio of vinegar and dishwashing soap. Use a sponge to completely cover and saturate the urine stain, soak for 1/2 hour. Use a dry towel to soak up as much of the soap as possible. Cover the entire wet spot with Baking Soda, leave on the spot until it completely dries, vacuum mattress.