How to Get Urine Out of a Memory Foam Mattress: 6 Easy Steps

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If you have a pet (or children), you know that accidents happen.

And if you’ve ever had a memory foam mattress, you know that those accidents can often be particularly difficult to clean up.

But never fear…by following these simple tips on how to get urine out of a memory foam mattress (learned firsthand after MANY potty and puppy training accidents), you can get urine out of your memory foam mattress and back to enjoying a restful night’s sleep.

In fact…they work on any type of mattress, so read on and never worry about a stained or stinky mattress ever again!

How to Clean Wet Fresh Urine From a Mattress

how to clean urine from mattress when wet

You have the best chance of a successful cleanup if you catch it early and the urine is still wet and has not soaked into the mattress too much.

  1. Strip The Bedding: The sooner you get the bedding off the mattress and in the washing machine with eco-friendly laundry detergent, the better.
  2. Blot, Don’t Rub: Using a clean cloth or paper towels, blot at the wet spot to soak up as much excess moisture as possible. Do not rub it in, as this will spread it around and make it harder to clean.
  3. Vinegar Solution: Mix equal parts white vinegar and water in a spray bottle and lightly spritz the affected area. Blot to remove any remaining moisture and odor.
  4. Baking Soda: Sprinkle baking soda over the spot (again, do not rub it in) and let it sit for at least 30 minutes (but the longer, the better).
  5. Vacuum: Thoroughly vacuum the baking soda with a hand-held vacuum or the upholstery attachment on your regular vacuum cleaner.
  6. Repeat As Needed: Repeat steps 3, 4, and 5 until you’re happy that the urine has completely gone.

These simple steps will remove lingering odors from your mattress and prevent staining.

How to Clean Dried Old Urine From a Mattress

how to clean dried urine stain from a mattress

If you didn’t catch the accident quickly and it has already dried, don’t worry. You can use a stronger cleaning solution in your spray bottle to penetrate the dried stain.

  1. Strip The Bedding: Again, you need to strip the bedding and get it washed ASAP.
  2. Stronger Solution: Mix a solution of 16 oz hydrogen peroxide (3%), 6 tbsp baking soda, and ½ tsp natural dish soap in a spray bottle.
  3. Spray The Stain: Liberally spray the stain to make it wet again. Make it damp enough that the solution starts to soak into the stain.
  4. Wait: After 4 - 6 hours, the solution should have dried, and the baking soda will have formed a layer over the stain.
  5. Vacuum: Use your vacuum cleaner to remove all traces of baking soda from your mattress.
  6. Repeat As Needed: Repeat steps 3, 4, and 5 until the stain and smell have been completely eliminated.

Prevention is Key

The best way to avoid having to clean urine out of a memory foam mattress (or any mattress, for that matter) is to prevent accidents from happening in the first place.

Make sure your pet or child has easy access to the outdoors or a designated potty area, and consider using absorbent pee pads or seat covers on furniture and beds until they are fully trained.

Regularly washing bedding (once a week is recommended) and using a mattress protector will help keep your mattress in tip-top condition.

Spot-cleaning any accidents and blotting up excess moisture immediately can also go a long way in preventing urine stains and urine smell on your mattresses and soft furniture.

Additional Tips for Pet Pee Smell

Cat and dog pee can often smell stronger than human pee.

You need to get to the scene of the accident ASAP and blot up any excess pet urine with a paper towel or a cloth.

For extreme pet urine odors, try sprinkling baking soda over the area and letting it sit overnight before vacuuming.

You can also try an enzyme cleaner designed to remove pet odors. This concentrated version helps reduce plastic waste because you can reuse your own spray bottle.

More Mattress Cleaning and Care Tips

Urine is not the only mattress issue you’re likely to encounter.

Luckily, we’ve got you covered with a range of mattress and bedding ’How To’ articles:

Frequently Asked Questions

How Do I Get a Human Urine Stain Out Of a Futon Mattress?

The tips in this article will work perfectly with a futon mattress. Some futon mattresses are even flexible enough to be machine-washed (if your machine is big enough). Always check the care label first.

Can I Use Bleach On a Memory Foam Mattress?

No, you should never use bleach on a memory foam mattress. It can damage the material and void any warranties.

Stick to natural, mild cleaning solutions such as baking soda or vinegar. If in doubt, contact the manufacturer for specific cleaning recommendations.

Does Urine Ruin Memory Foam?

Not necessarily. If you clean the urine promptly and thoroughly, it should not cause any long-term damage or deterioration of your memory foam mattress.

However, if left to sit for an extended time, it could result in permanent urine stains and odor that can diminish the quality and comfort of your mattress.

To prevent this, always clean up accidents as soon as possible and consider using a mattress protector to prevent accidents from occurring in the first place.

Is Hydrogen Peroxide Toxic?

Hydrogen peroxide can be toxic if ingested, but it’s generally considered safe for topical use in small concentrations.

Choose a 3% solution and spot test before using hydrogen peroxide on fabrics or mattresses to ensure it doesn’t cause discoloration.

Always exercise caution and follow the manufacturer’s usage instructions carefully. If in doubt, stick to milder cleaning solutions such as baking soda or vinegar.

What’s Better, Paper Towels Or a Microfiber Cloth?

Paper towels are super absorbent and often compostable...but they have the downside of being single. Microfiber cloths are also super absorbent and can be reused…but they have the downside of polluting waterways when wasted.

If a damp cloth is ever needed to remove urine stains, I prefer to use an old organic cotton t-shirt cut into squares.

The Final Word

Cleaning up after accidents may be a pain, but with these tips, your mattress will be clean and smelling fresh in no time.

No matter the type of mattress, always remember to blot (not rub) and use non-toxic, eco-friendly cleaning solutions for the best results (and a safer sleep environment!).

Make sure you get to the accident as soon as you can. Fresh urine is easier to clean than old dried urine.

And…consider investing in a mattress protector to prevent future accidents.

Get In Touch

Do you have any killer tips for cleaning urine out of mattresses? Do you use a DIY cleaning mix? Or do you have a favorite spray bottle cleaning brand? Drop me a line and let me know.

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James is a senior editor at The Roundup and has been in journalism for over 10 years. He was born in the UK but raised in Florida, where he currently lives with his wife and two daughters. James is passionate about sustainable living and environmental issues which are reflected by his work as an editor of
James Miller
James is a senior editor at The Roundup and has been in journalism for over 10 years. He was born in the UK but raised in Florida, where he currently lives with his wife and two daughters. James is passionate about sustainable living and environmental issues which are reflected by his work as an editor of

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