How to Get Dog Pee Out of a Mattress

Your dog had an accident on the mattress. It happens. Whether it is a puppy still learning, an older dog with bladder issues, or just a one-off mishap, the important thing now is dealing with it quickly and properly. If you want to get dog pee out of a mattress without the smell coming back three days later, you need to follow the right steps from the start.

Here is exactly what to do.

What This Guide Covers

• Act Fast: Why Timing Matters With Dog Pee
• What You Need
• Getting Fresh Dog Pee Out of a Mattress
• Getting Dried Dog Pee Out of a Mattress
• What About Large Dog Accidents
• Stopping Your Dog From Doing It Again
• Frequently Asked Questions

Act Fast: Why Timing Matters With Dog Pee

The difference between a fresh dog pee accident and a dried one is significant. Fresh urine is still close to the surface of the mattress. It has not yet fully soaked into the deeper layers, the uric acid has not crystallized, and the odor compounds have not had time to develop fully.

The moment you discover the accident, the clock is already ticking. Every minute that passes means the urine soaks deeper, the stain sets further, and the smell gets harder to eliminate. So whatever you are doing right now, stop and deal with this first.

What You Need

• Plenty of clean ,dry towels or thick paper towels
• Cold water in a spray bottle
• Distilled white vinegar
• Baking soda
• Liquid laundry detergent
• Pet-specific enzyme cleaner
• Vacuum cleaner

Getting Fresh Dog Pee Out of a Mattress

Right. Let us get moving.

Grab as many clean towels as you can find and press them firmly onto the wet area. Hold them down hard. Do not rub. Just press and absorb. Keep swapping to fresh towels and pressing until you have pulled out as much liquid as possible. This is the most important step. The more you get out now, the easier everything else becomes.

Mix one cup of cold water, one cup of white vinegar, and one tablespoon of laundry detergent in a spray bottle. Spray this generously over the whole affected area. You need to use enough to match the depth of the urine-soaked. Do not just dampen the surface. Cover it properly and let the solution sit for 15 minutes.

Blot it up with fresh dry towels. Then, pour a thick, generous layer of baking soda over the entire treated area. Not a light sprinkle. A proper thick covering. Leave it overnight. Vacuum everything up in the morning and check carefully for any remaining stains or smells. If odor is still present after the first round, apply a pet enzyme cleaner over the smelly area, leave it for 30 minutes, blot, and repeat the baking soda overnight. That should finish it off completely.

Getting Dried Dog Pee Out of a Mattress

Did not catch it in time? The stain has dried. That is okay. It just takes a bit more work.

Start by lightly misting the dried stain with cold water. Just a gentle spray to dampen the surface and begin softening the dried uric acid crystals. Leave it for a couple of minutes.

Now spray your vinegar-and-water solution generously over the stain. More generously than you would for a fresh stain because the dried urine has soaked deeper. Leave it for 20 minutes this time. Blot it up well, cover with a thick layer of baking soda, and leave for a full 24 hours.

Vacuum it up and check the result. If the stain is still visible or the smell persists, bring in the enzyme cleaner. Apply it generously over the whole area, leave it for a full 30 minutes to an hour, blot, and repeat the 24-hour baking soda treatment.

Old dried dog pee stains can take two or three rounds to go away fully. That is completely normal. Keep going, and you will get there.

For more on dealing with dried stains specifically, visit our guide to getting dried pee out of a mattress.

What About Large Dog Accidents

If you have a large dog, the volume of urine involved in an accident can be significant. A large dog can deposit enough urine to soak several inches deep into a mattress. In these cases, you need to adjust your approach.

Use considerably more cleaning solution than you would for a smaller accident. After blotting, apply the vinegar solution in two rounds rather than one, allowing each round to sit for 15 minutes before blotting and applying the next. Use a full large box of baking soda and leave it for the full 24 hours.

For very large accidents, standing the mattress upright after treatment and allowing air to circulate through it while it dries makes a real difference—a ffailedat the ttreatment and significantlyspeeds up the pprocedure

Stopping Your Dog From Doing It Again

Dogs are attracted back to spots where they can smell their own urine. So the most important thing after cleaning is making sure no smell remains. Get down close to the mattress and sniff carefully. If you can detect anything at all, your dog definitely can. Keep treating until the sniff test comes back completely clean.

After that, fit a waterproof mattress protector. It is the single most practical thing you can do to protect your mattress from future accidents. Any liquid that stays on the protector, you remove and wash. The mattress underneath stays completely dry and clean.

If your dog has been having accidents regularly, speak to a vet. Repeated urination accidents, especially in a previously housetrained dog, can be a sign of a urinary tract infection, diabetes, or other health condition. According to the ASPCA, house soiling in dogs that were previously housetrained is often a medical issue and warrants prompt investigation with a vet.

Related Guides

For a lingering dog pee smell after cleaning, visit our guide on how to get dog pee smell out of a mattress.

For cat pee on a mattress, see our guide on how to get cat pee out of a mattress.

For everything in one complete guide, visit: How to Get Urine Out of a Mattress: The Complete Guide.