How to Remove Urine Smell from a Mattress

Waking up to a lingering urine odor is a nightmare. The good news is you don’t need a professional cleaner – a few household items and some patience can bring your mattress back to fresh. Below is a no‑fuss plan that works for kids, pets, or accidental spills.

Step‑by‑Step Cleaning Process

1. Act fast and blot. Use clean towels or paper towels to press down on the wet spot. Don’t rub – rubbing pushes the urine deeper into the fibers.

2. Mix a cleaning solution. Combine 1 cup of cold water, 1 teaspoon of mild dish soap, and 1 tablespoon of white vinegar. Vinegar neutralises the ammonia in urine and stops the smell from setting.

3. Spray lightly. Lightly mist the area with the solution. Too much liquid can soak the mattress and create mildew. Let it sit for 5–10 minutes.

4. Blot again. Use a fresh towel to soak up the liquid. Repeat the spray‑blot cycle until you notice the odor fading.

5. Apply baking soda. Sprinkle a generous layer of baking soda over the treated spot. Baking soda absorbs remaining moisture and neutralises odors. Leave it on for at least 4 hours, preferably overnight.

6. Vacuum the powder. Use the upholstery attachment on your vacuum to remove all the baking soda. If any scent lingers, repeat the baking soda step.

7. Air‑dry completely. Place the mattress near a window or use a fan. Moisture left inside can lead to mold, which creates a worse smell than urine.

Prevent Future Odors

Prevention is easier than treatment. A waterproof mattress protector creates a barrier that stops liquid from reaching the foam. Wash the protector weekly to keep it fresh.

If you have a pet, consider a pet‑specific mattress cover that is both waterproof and washable. For kids, teach bathroom habits early and keep a spare set of sheets handy for quick changes.

Regularly air out your mattress by removing the bedding and letting it breathe for 30 minutes each week. This simple habit keeps the fibers from trapping any hidden smells.

When accidents happen, remember the key steps: blot, mild cleaning solution, baking soda, and thorough drying. You don’t need expensive chemicals or a trip to a specialist. With these easy tricks, your mattress will stay clean, odor‑free, and ready for a good night’s sleep.