Pre-treating your mattress with a sprinkling of baking soda can refresh its surface. Applying a cleaning solution with hydrogen peroxide, water, and soap along with another round of baking soda can help get rid of yellow stains. Products designed for upholstery cleaning may eliminate or reduce yellow discoloration.
It's not advisable to skip washing a mattress on which someone has peed. Urine can lead to unpleasant odors, bacteria, and potential mold growth if not properly cleaned. Here's how you can clean the mattress:
Make a cleaning solution of 1 cup hydrogen peroxide , 3 tbs baking soda, and 1 drop of dish soap. Put it in a spray bottle and spray onto the stains. Let it sit for 10-20 minutes, then blot with a clean towel to dry. Let the mattress air dry completely before putting linens or a cover on.
Vinegar is the tried and true method for cat urine, since it doesn't stain and removes the odor. And to note, peroxide has color fading properties but is not ``bleach''; bleach when mixed with ammonia creates a noxious gas.
Most urine stains can be cleaned either with a homemade vinegar cleaner, or a homemade hydrogen peroxide cleaner. Foams soak up liquids quickly, so all-foam beds can hold onto the smell of urine more than other mattresses. Many urine smells can be removed by making and using a simple baking soda paste.
As with any pet stain removal, absorb excess urine with a towel and remove as much fecal matter as possible from the area before applying cleaning solution. Fully mix one-part hydrogen peroxide and one-part Dawn dish soap in a spray bottle. Spray the affected area with the mixture.
Pre-treating your mattress with a sprinkling of baking soda can refresh its surface. Applying a cleaning solution with hydrogen peroxide, water, and soap along with another round of baking soda can help get rid of yellow stains. Products designed for upholstery cleaning may eliminate or reduce yellow discoloration.
An enzymatic cleaner, such as OxiClean, can also work wonders on pee smells. These cleaners include ingredients that actually attack the source of the odor. Look for cleaners with protease enzymes, specifically. To use, saturate the affected areas of your mattress and let dry completely.
Deep Stains
Fill a bowl with 2 cups of hydrogen peroxide and 1 tablespoon of dish soap. Mix well. Use a clean sponge to apply the mixture to your mattress stains. Allow the mixture to work for a few minutes, and then blot or rub the stains with a damp rag.
Create a mattress stain remover by combining 8 oz. hydrogen peroxide, 3 tbsp baking soda, 1 tsp dish soap in a spray bottle - this solution will remove urine stains on its own, just wait until the spots are gone.
If the stain has been in the fabric for an extended period of time, soak the article overnight in the vinegar and water, then wash as usual in the morning. Repeat soaking the item in vinegar and water until stain is removed.
Also, I would try an enzyme spray. I have used Biokleen Bac-Out stain remover. That helps break down stains as well. I would try one of those, let it soak in, maybe use a shop vac or something that suck water up, and clean it with that.
Hydrogen Peroxide. Hydrogen peroxide is a highly effective pet stain remover and disinfectant. Hydrogen peroxide breaks down into water and oxygen, and during this process kills bacteria and lifts stains.
Without a mattress protector in place, yellow stains caused by sweat, body oils, urine, dust, dirt and other debris will begin to build up. Hydrogen peroxide is a powerful cleaning solution that helps shift stubborn stains in minutes. However, if you don't use it properly, you could cause lasting damage to your bed.
Steam cleaning is another effective deep-cleaning method, especially for tackling older or tougher urine stains. It uses high-temperature steam to penetrate the mattress fibers, breaking down stains and eliminating odors.
Mildly acidic pH of 3-4 helps dissolve uric acid crystals and yellow stains. Hydrogen peroxide in the range of 2-4% destroys odor causing bacteria. Surfactants allow deep penetration into thick soft surfaces like mattresses, upholstery, and carpet. Hydrogen peroxide helps safely remove stains from soft surfaces.
For carpet, mattresses and upholstery stains: Blot with a dry clean cloth or towel to absorb excess liquid. Spray or squeeze directly onto stain until completely covered. Allow to stand for 3 minutes. Blot area with a clean damp cloth.
Use a damp sponge or cloth to dab the stain with cold water, then spot clean with a stain remover for upholstery. Alternatively, a weak detergent solution can be used. Gently sponge with water to remove any detergent residues, but it's important to avoid over-wetting the mattress.
Sweat and Sebum
It's a fact that everyone sweats and releases natural body oils while sleeping. Although sweat stains may not be visible immediately, they gradually accumulate, leading to unsightly yellowish stains. Sweat and sebum provide an ideal environment for bacterial growth, which can cause unpleasant odours.
Baking soda and hydrogen peroxide are natural, non-toxic products that clean many surfaces in your home. The two products can be safely combined to form a paste or used separately to whiten laundry, remove odors, disinfect surfaces, and much more.
All you need is Hydrogen Peroxide and Dawn dish soap (the blue one is best). The mixture is 1 to 1 and I had a large area to cover so I mixed 1/4 cup Dawn and 1/4 peroxide in an oblong dish so I could get my scrub brush into it easily. Using a stiff bristle brush, dip into the solution and apply to the stained carpet.
If it's dry, use a vacuum. In each case, follow that up with a cloth slightly dampened with water and blot. Then use an enzyme cleaner to attack the stain. (Follow the cleaner's instructions as to whether you should spray it directly onto the mattress or a piece of cloth.)
A Mr clean magic eraser will grind down a urine stain. You might want to use one first to roughen up the surface and then apply one of the chemical methods suggested.