What Gets Urine Smell Out Of Mattress? Simple Methods That Really Help

If you’re searching for “What Gets Urine Smell Out Of Mattress”, you’re likely dealing with a fresh accident, an old stain, or a lingering odor that just won’t go away. This guide walks through what usually works, what to avoid, and how to keep your mattress smelling fresh without damaging it.

What Actually Gets Urine Smell Out Of a Mattress?

Urine odor sticks because it dries into crystals that are hard to remove with simple soap and water. The most useful household tools are:

  • White vinegar – helps break down urine and neutralize odor
  • Baking soda – absorbs moisture and lingering smells
  • Mild dish soap – helps lift residue from fabric and foam
  • Cool or lukewarm water – dilutes urine without setting the stain
  • Enzymatic cleaners (pet or fabric formulas) – help break down organic odor-causing compounds

Most people find that a mix of vinegar and baking soda, followed by plenty of drying time, makes the biggest difference.

Step-by-Step: How To Remove Fresh Urine Smell

1. Act Quickly and Blot (Don’t Rub)

  • Remove all sheets and bedding.
  • Use clean, absorbent towels or paper towels to blot up as much urine as possible.
  • Press down firmly; avoid scrubbing, which can push urine deeper into the mattress.

2. Apply a Vinegar and Water Solution

A common home method for what gets urine smell out of mattress is a gentle vinegar mix:

  • Combine 1 part white vinegar to 2–3 parts cool water.
  • Add a small drop of mild dish soap if desired.
  • Lightly spray or dab the solution onto the affected area—dampen, don’t soak.
  • Let it sit for around 10–15 minutes to help break down the urine.

Blot again with dry towels to remove extra moisture.

3. Cover With Baking Soda

  • Sprinkle a generous layer of baking soda over the damp area.
  • Gently spread it out so it covers slightly beyond the stain’s edges.
  • Leave it on for several hours, or ideally overnight, to absorb odor and moisture.

Once dry, vacuum the baking soda thoroughly.

How Do You Remove Old or Set-In Urine Odors?

Dried urine can be more stubborn and may require repeating the process.

1. Re-Dampen the Area

  • Lightly spray the spot with water or the vinegar solution to reactivate the dried urine.
  • Avoid soaking the mattress; deep saturation can be hard to dry.

2. Use an Enzymatic Cleaner (If Available)

Many people turn to enzyme-based cleaners formulated for fabrics and soft surfaces. These products are designed to help break down odor-causing residues.

  • Apply according to the label directions.
  • Allow enough dwell time; these cleaners usually need time to work.
  • Blot excess moisture and allow the mattress to dry completely.

3. Repeat Baking Soda Treatment

Even after enzymatic cleaning, a fresh layer of baking soda can help:

  • Apply, leave for several hours, then vacuum.
  • Strong odors may need more than one treatment.

How Long Does It Take for the Smell to Go Away?

The time frame depends on:

  • How much urine soaked in
  • How quickly you treated the mattress
  • Room ventilation and humidity

With prompt cleaning and good airflow, many people notice a clear improvement within a day. Deep, older odors may require multiple cleaning cycles and full drying between each attempt.

Is Vinegar Enough On Its Own?

Vinegar helps with neutralizing odor, but it can leave its own scent at first. This usually fades as it dries, especially when followed by baking soda.

For many households:

  • Vinegar + baking soda works well for mild to moderate smells.
  • Enzymatic cleaner + baking soda is often more helpful for strong or long-term odors.

What Should You Avoid When Cleaning Urine From a Mattress?

Some common mistakes can make odor and staining harder to deal with:

  • Avoid harsh bleach: It can damage fabrics and foam and may discolor the mattress.
  • Avoid over-saturating: Too much liquid can soak deep into the core and take a long time to dry.
  • Avoid hot water: Heat may help set some stains and odors.
  • Avoid strong perfumes or sprays as the only solution: These typically mask, rather than remove, the underlying smell.

How Do You Dry the Mattress Properly?

Drying is as important as cleaning when figuring out what gets urine smell out of mattress for good.

  • Open windows or use a fan to improve air circulation.
  • If possible, stand the mattress on its side to help moisture evaporate evenly.
  • Allow many hours of drying time before putting sheets back on.
  • Avoid trapping moisture with mattress protectors or heavy bedding until it is fully dry.

A mattress that stays damp can hold onto odors and may feel uncomfortable.

✅ Quick Mattress Takeaways

Key points about what gets urine smell out of mattress

  • Best basic combo: Cool water, white vinegar, and baking soda, plus plenty of drying time.
  • For older odors: Re-dampen, use an enzymatic cleaner, then follow with baking soda and vacuuming.
  • Blot, don’t rub: Press to remove liquid without pushing it deeper into the mattress.
  • Don’t oversoak: Too much liquid can create new problems and prolong drying.
  • Dry thoroughly: Good airflow, time, and patience are essential for odor removal.
  • Protection helps next time: A washable, waterproof mattress protector can keep future spills from soaking in.

With a calm, step-by-step approach and the right household materials, most people can significantly reduce or eliminate urine odor from a mattress and restore a fresher sleeping surface.