Cleaning Guides

How to Clean Wee off a Mattress

When you have children or pets, or both, you will inevitably have to deal with a wet mattress at some time or another. Saving this situation can hardly be described as fun, however, it’s not as difficult as some might think. The critical thing to remember is to take action as soon as it happens. But even if you’ve been out of town when your pet had the accident, you can still clean your mattress successfully later.

So, if you:

  • Have a child who is still potty training and just had an accident on your bed;
  • Have a dog that even though is potty trained, had an accident on your bed;
  • Have an old parent who can no longer control their bladder.

Then read along and learn how to clean wee off a mattress. Mind you, avoid using commercial products unless they are specially created for this task.

The tools and materials that you’ll need for the job 

The items here are very common for every household and chances are you already have most, if not all, of them. These include:

  • Distilled white vinegar
  • Cold water
  • Baking soda
  • Clean towels
  • Spray bottle
  • Vacuum cleaner
  • Hydrogen peroxide
  • Liquid detergent

These items can be used to clean various items and not just wee from a mattress.


Spray bottles are recommended because they can distribute the solution and not oversaturate the soiled area. Being careful not to oversaturate is essential; otherwise, you might damage the mattress foam.

How to clean fresh wee off a mattress

This is the best-case scenario and, hopefully, you will have a chance to act as soon as possible.

  1. Remove all the bedding and place it in the washing machine.
  2. Blot the pee stain on the mattress with a clean towel. Do not scrub – this will only push the urine deeper into the mattress material and make it harder to remove.
  3. Fill your spray bottle with equal parts of vinegar and water, and spray over the dirty area.

If the smell is particularly strong, you can spray with just white vinegar. 

  1. Let the vinegar solution penetrate the mattress for about 10 to 20 minutes.
  2. Blot the vinegar solution with a clean towel.
  3. Cover the treated area with baking soda and leave overnight. Baking soda absorbs nasty smells and will help a great deal with getting the wee smell out of the mattress.
  4. Vacuum the baking soda thoroughly, concentrating on the dents and hard to reach areas.
  5. Inspect the area. Do you still smell wee? If yes, sprinkle baking soda over the problematic spot and wait another 8 hours.

This method works on regular mattresses, as well as on those made from memory foam.

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How to get dried wee out of a mattress

If you’ve been out of town for several days, or just never noticed there was dried urine on the bed until now, do the following:

  1. Mix 1 cup of hydrogen peroxide with 3 tablespoons of baking soda, and add 2 to 3 drops of dish soap. Give the bottle a few swirls and you’re ready to go.
  2. Spray the solution over the stain, making sure to cover it evenly.
  3. Let the mixture dry off on its own. After the solution has evaporated, you should be able to see some baking soda residue.
  4. Vacuum the residue and all should be good.

Depending on how old the stain is, it might not disappear right away the first time. You will have to repeat this process as many times as needed, so that spot on the mattress is visually removed and no longer smells.

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How to clean pet wee

Dog urine is very similar to that of humans, so if Fido makes a mess in your bedroom, clean as you normally would. Cats’ wee, on the other hand, is different in that it is very potent. That’s because it contains an amino acid called felinine, which is only found in cat urine. Cleaning cat pee will require a commercial enzyme product for the best possible results.

  1. Blot the stain if the pee is still fresh.
  2. Lay a tarp or a plastic sheet between the mattress and the box spring.
  3. Pour 3 to 4 cups of warm water onto the stain to dilute the wee.
  4. Blot the liquid.
  5. Apply the enzyme cleaner according to its instructions. Some products need to be sprayed, while others you have to pour.
  6. Leave the product on the mattress for as long as the instructions say.
  7. Soak up any excess moisture.
  8. Sprinkle a generous amount of baking soda on top of the spot and leave it overnight.
  9. Vacuum the baking soda.
  10. Repeat until there is no nasty smell left.
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Consider professional mattress cleaning

If you find it hard to remove the smell of wee after cleaning the stain, then why not hire professional mattress cleaning? We, at Fantastic Services, offer expert mattress cleaning services that will save you the hassle of dealing with this messy chore. Our solutions are performed by trained professionals who work with industry-grade cleaning products and equipment that will get the job done. So, put that bottle of vinegar down and book Fantastic Services’ effective mattress cleaning now!  

Need a professional?

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  • If you have the chance, always act fast as possible when it comes to dealing with urine stains. Leaving the spot will make it harder to clean afterwards. 
  • Don’t rub the stain. Use gentle blotting motions. 
  • Unless you are cleaning cat pee, you can easily get away with using items that you already have in your kitchen cabinet.


Did you manage to clean the wee stains using the information from our post? let us know by commenting!

Image source: Shutterstock / danielcastromaia

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