Whether it's your pet or your child, urine stains on a mattress can be frustrating to resolve. There are chemical products available that can help clean a urine soaked mattress, but many times side effects from chemicals can be worse than the problem you set out to clean. Keeping simple household ingredients on hand ensures that you can tackle a urine soaked mattress or any other cleaning problem without worrying about toxic ingredients.
Pour vinegar directly over the urine soaked area. You will need only enough vinegar to cover the area of the stain, so if you have a smaller stain, you will only need a small amount of vinegar. Vinegar has a strong odour, but that will dissipate once the area has dried.
Blot the vinegar soaked area with clean, dry towels. Keep blotting until the towels come up almost dry.
Apply up to 1 tbsp liquid washing powder to the stained area. You can use a brush or sponge to scrub the area lightly with some water. The washing powder will help to break up any staining from the urine. Blot with a fresh towel until the area is almost dry.
Sprinkle the stained area with baking soda. You will need enough to cover the entire area you have been blotting, which will vary depending on the size of the stain. Let the baking soda sit on the mattress overnight.
Vacuum the baking soda off the mattress. If the area is still not completely dry, reapply the baking soda and allow it to sit for several hours or overnight again. Vacuum the baking soda again once dry.
Vinegar has a strong odour. If you are working in a small room, ventilate the area well.