Unfortunately, getting rid of dog urine from a mattress can be a tough task. According to a study from the American Journal of Public Health, "urine stains and odors are nearly impossible to remove." The best solution is to protect the mattress with a mattress cover or purchase a new one.

However, here are some steps you can take:

• Dry it Up:
The first step when attempting to rid your mattress of dog pee is to grab some disposable gloves and a paper towel. Use the paper towel to soak up as much of the liquid as you can. The longer it sits, the harder it will be to eliminate.

• Mix it Up:
Once the mattress is mostly dry, mix one part white vinegar and one part water. Carefully pour the mixture onto the area of the mattress and allow it to soak for about 10 minutes. Use a fresh paper towel to gather up any remaining liquid.

• Deodorize:
To deodorize the area, sprinkle baking soda on the affected section. This will help to neutralize any odors that remain. Let it sit for a couple of hours so that it has enough time to absorb, and then vacuum it up. You can also use an enzyme-based pet odor remover to spray the area and further reduce the smell.

If the stain and smell still linger, the best option is likely to buy a new mattress (Saatva Classic) and protect it with a mattress cover. That way, you can avoid future accidents.

Dealing with urine stains and smells on your mattress can be tricky business.

If you find yourself in this situation, these steps can help.

• Absorption:
The first step is to absorb as much of the liquid as you can using paper towels, a dry rag, or a wet vacuum cleaner.

• Cleaning Solution:
Mix together one part white vinegar and one part warm water and apply it to the stain. Blot the area with a dry rag and let sit for several minutes before repeating the process. This may need to be done multiple times until the stain is completely removed and the odor is gone.

• Prevention:
One way to reduce the risk of future stains and smells is to invest in a waterproof mattress protector. It will act as a barrier between your mattress and any liquid spills and help keep your mattress looking and smelling fresh.

Unfortunately, if the stain and smell are too much to handle, you may need to buy a new mattress. Not only is a heavily stained or smelly mattress visually unappealing, but it also poses potential health risks. It's best to invest in a new mattress ASAP.

Dealing with urine stains and odors on a mattress can be tricky, but there are some steps you can take to try and eliminate them.

• First, You Need to Dry the Area:
Make sure the affected area is completely dry as any remaining moisture can cause the area to become mildewed.

• Identify the Areas with a Black Light:
Using a black light is a great way to find all the areas where the urine has been absorbed.

• Use an Enzyme Cleaner:
Apply an enzyme cleaner that's specifically designed to break down urine proteins. Spray the cleaner onto the affected area, allow it to sit for 10-15 minutes, then wipe it away.

• Rinse and Let it Air Dry:
Rinse the area with cold water and let it air dry. If the stain is still visible, use an absorbent cloth to blot it until it disappears.

• Deodorize the Area:
If the smell is still lingering, sprinkle baking soda over the area and let it sit for several hours to help deodorize. Once the area is dry, vacuum it up.

Remember, the key to removing these old urine stains and odors is to act quickly and use the right cleaners. With some patience and effort, you can get your mattress looking and smelling like new again.

Note: If the stain and smell remain, it may be time to consider getting a new mattress. There are plenty of mattresses designed with stain- and odor-resistant materials, which could make cleaning much easier.

With a few simple steps, you can eliminate the urine stains and the unpleasant odor without using vinegar.

• Absorb the Liquid:
The first step is to remove as much of the urine as possible. Place a clean and dry rag or towel over the stain and apply pressure to absorb the liquid. You may need to use several cloths for this step, as the liquid can quickly seep back into the material.

• Use an Enzyme-Based Pet Odor Neutralizer:
Next, apply an enzyme-based pet odor neutralizer, which is widely available at pet shops, over the affected area. Follow the directions on the product to apply it correctly. Once it has been applied, leave it to soak in for 10 minutes before wiping it off with a damp cloth.

• Baking Soda:
Once the mattress is dry, get a cloth and sprinkle some baking soda over the stain and rub it into the fabric. This helps to neutralize any remaining odor. Allow the baking soda to sit on the mattress for around 15 minutes before vacuuming it off.

• Wash or Replace the Cover:
If the urine stain and odor is still present, you may need to remove the mattress cover and wash it using hot water. If you're unable to remove the mattress cover, it may be time to buy a new mattress (Saatva Classic is our top pick).

Depending on the amount of time the stain and odor have been lingering, it may not be possible to completely get rid of the smell. If you are able to address the accident right away, try to soak up as much of the urine as you can, with towels or a more absorbent material. Next, put some pet enzyme cleaner on the area and leave it for 5-10 minutes before wiping it up with a clean cloth.

If after these efforts, the smell is still present, one user on a forum suggested sprinkling baking soda over the spot and then spraying white vinegar on top. Leave it to sit for 30 minutes and then vacuum up the baking soda. As a final step, put a few drops of lavender oil on a cloth and lightly wipe it on the mattress.

It can be a good idea to also take steps to prevent future accidents by washing bedding regularly, having a designated toileting area with lots of newspaper, and keeping that area consistently clean and free of odours.

If, nevertheless, the odour persists despite these steps, it might be best to purchase a new mattress, as urine stains and smell can be virtually impossible to remove.