How to Get Dried Cat Urine Out of a Mattress?
We all love our feline companions, but accidents happen. If your cat has urinated on your mattress and the stain has dried, removing it can be challenging. The strong ammonia odor and uric acid crystals make cat urine one of the hardest stains to clean. But don’t worry—using the right cleaning methods, you can restore your mattress to its fresh, odor-free state.
To effectively remove dried cat urine from a mattress, use an enzyme-based cleaner or a homemade solution of vinegar and baking soda. These methods break down the uric acid and eliminate odors completely.
Follow the step-by-step guide below to tackle even the most stubborn dried urine stains.
Why Does Cat Urine Smell So Strong?
Cat urine contains uric acid, which binds tightly to fabrics and surfaces. When it dries, it forms crystals that reactivate with humidity, causing the odor to linger for months. Additionally, cat urine contains ammonia, bacteria, and hormones that intensify the smell over time.
Supplies You’ll Need for Cleaning
Before starting the cleaning process, gather the following materials:
- White vinegar
- Baking soda
- Enzyme-based cleaner (for pet urine)
- Hydrogen peroxide (3%)
- Dish soap
- Clean towels or paper towels
- Vacuum cleaner
- Spray bottle
- Plastic wrap
Step-by-Step Cleaning Process
Step 1: Identify the Affected Area
- Use a blacklight or your sense of smell to locate dried urine stains.
- Outline the area with chalk or tape so you don’t miss any spots.
Step 2: Pre-Treat with Vinegar Solution
- Mix one part white vinegar with two parts cold water in a spray bottle.
- Add a few drops of dish soap and shake well.
- Spray the affected area generously, ensuring the liquid soaks into the mattress fibers.
Step 3: Let the Solution Soak
- Allow the vinegar solution to sit for 10–15 minutes to break down the urine deposits.
- Blot with a clean towel to absorb excess moisture. Do not rub, as it may spread the stain.
Step 4: Apply Baking Soda & Hydrogen Peroxide Solution
- Sprinkle a generous layer of baking soda over the treated area.
- Mix one cup of hydrogen peroxide with one teaspoon of dish soap.
- Pour or spray the mixture over the baking soda, letting it fizz and penetrate the stain.
- Let the mixture sit for at least 8–10 hours.
Step 5: Cover with Plastic Wrap
- Place plastic wrap over the treated area to prevent the solution from evaporating too quickly.
- Let it sit for 24–48 hours for deep penetration.
Step 6: Vacuum Up Residue
- Once completely dry, remove the plastic wrap and vacuum up the dried baking soda residue.
- Inspect the mattress for lingering stains or odors. If necessary, repeat the process.
What If the Smell Remains?
If the odor persists after the first round of cleaning, try these additional methods:
- Repeat enzyme cleaner application – Pet-specific enzyme cleaners break down uric acid more effectively than household cleaners.
- Air out the mattress in sunlight – Sunlight helps disinfect and break down lingering odors.
- Use an activated charcoal bag – Place near the mattress to absorb remaining odors.
Preventing Future Accidents
1. Use a Waterproof Mattress Protector
- Invest in a waterproof, washable mattress cover to prevent future stains.
2. Keep the Litter Box Clean
- Cats avoid dirty litter boxes. Ensure it’s cleaned daily to prevent accidents.
3. Address Behavioral or Medical Issues
- If accidents persist, consult a vet to rule out urinary tract infections or behavioral problems.
Conclusion
Cleaning dried cat urine from a mattress requires patience, but with the right techniques, you can remove stains and odors completely. Using enzyme cleaners or a combination of vinegar, baking soda, and hydrogen peroxide will help break down urine residues and restore freshness. Protect your mattress with a waterproof cover and keep your cat’s litter box clean to avoid future mishaps.