How To Clean Pee Stains From a Mattress: Simple Steps That Actually Work

If you’re searching for “How To Clean Pee Stains From a Mattress”, you’re likely dealing with a fresh accident or a lingering stain and smell. This guide walks through exactly what to do, why it works, and how to prevent long‑term damage to your mattress.

What Happens When Pee Gets on a Mattress?

Urine can soak deep into a mattress, leaving visible stains and a noticeable odor. If it isn’t cleaned properly, it may:

  • Discolor the fabric
  • Leave a sour or ammonia-like smell
  • Be harder to remove over time

Mattresses can’t be machine washed, so spot cleaning with the right technique is essential.

How To Clean Pee Stains From a Mattress (Fresh Stains)

Step 1: Act Quickly and Blot, Don’t Rub

  1. Remove bedding right away.
  2. Use clean, dry towels or paper towels to blot the area.
  3. Press firmly to soak up as much liquid as possible.
  4. Avoid rubbing, which can push urine deeper into the mattress.

Step 2: Use a Gentle Cleaning Solution

A common at-home approach is a mild, water-based solution. For example, many people use a mix of water and a small amount of gentle soap or a diluted household cleaner that’s safe for fabrics.

  • Lightly spray or dab the solution onto the stained area.
  • Do not soak the mattress; too much liquid can be hard to dry.
  • Let it sit for a few minutes to help break up the stain.

Step 3: Blot Again Until Damp (Not Wet)

  • Use fresh, dry cloths to blot out the cleaner and moisture.
  • Continue until the mattress surface is only slightly damp.

Step 4: Deodorize the Area

To help neutralize lingering odor, many people use dry, absorbent powders such as baking soda:

  • Sprinkle a generous layer of baking soda over the damp area.
  • Gently spread it so the stain is well covered.
  • Leave it on for several hours, or overnight if possible.

Step 5: Vacuum Thoroughly

  • Once the baking soda is completely dry, vacuum it up using an upholstery attachment.
  • Check the area: if some odor or light staining remains, repeat the process.

How To Clean Pee Stains From a Mattress (Dried or Old Stains)

Dried pee stains can be more stubborn, but they’re often still manageable with patience.

Step 1: Lightly Re-Dampen the Stain

  • Use a slightly damp cloth with plain water to moisten the area.
  • The goal is to soften the dried residue, not to saturate the mattress.

Step 2: Apply a Stain-Targeting Solution

For older stains, some people use:

  • A slightly stronger mix of water and mild detergent, or
  • A fabric-safe cleaner designed for stain removal

Test a small, hidden area of the mattress first.

  • Apply lightly to the stained area.
  • Let it sit for 10–15 minutes so it can work on the discoloration.

Step 3: Blot and Deodorize

  • Blot thoroughly to remove moisture and residue.
  • Cover with baking soda again to draw out remaining dampness and odor.
  • Let dry completely, then vacuum.

You may need multiple rounds to noticeably lighten deep or older stains.

Is It Possible to Remove the Smell Completely?

Odor removal often depends on:

  • How much urine soaked into the mattress
  • How long it sat before cleaning
  • How many times it has been cleaned

In many everyday cases, careful blotting, mild cleaning, and baking soda reduce the smell significantly. Some particularly intense or long-standing odors may be harder to remove fully.

How Long Does It Take a Mattress to Dry After Cleaning?

Drying time varies, but it usually takes several hours. To help it dry:

  • Keep the room well-ventilated (open windows if possible).
  • Use a fan pointed at the mattress.
  • Avoid making the bed again until the spot is completely dry to the touch.

Using too much liquid during cleaning can extend drying time and may lead to lingering dampness, so light applications work best.

Can You Prevent Future Pee Stains on a Mattress?

While accidents happen, a few habits can help:

  • Use a waterproof mattress protector to create a barrier.
  • Clean small accidents quickly before they spread.
  • Wash bedding regularly and check the mattress surface underneath.

These steps don’t guarantee a stain-free mattress, but they can limit damage and make cleanup easier.

❓ Common Questions About How To Clean Pee Stains From a Mattress

Will pee stains permanently damage my mattress?

Many surface-level stains can be visibly reduced and deodorized with proper cleaning. Deep, repeated, or long-ignored stains may leave some faint discoloration or lingering smell, even after cleaning.

Can I use very hot water or harsh chemicals?

Very hot water and strong chemicals can:

  • Set some stains
  • Damage mattress fabrics or foams
  • Leave their own strong odors

Milder, fabric-safe solutions are generally a safer approach for routine cleaning.

Can I steam clean my mattress?

Some people consider steam cleaning, but intense heat and moisture may not be ideal for all mattress materials. If you’re unsure, it’s often safer to stick with spot cleaning and light moisture.

✔️ Quick Mattress Takeaways

Key points about How To Clean Pee Stains From a Mattress

  • Act fast: Blot fresh pee stains right away; avoid rubbing.
  • Use light moisture: Apply mild, fabric-safe cleaners sparingly to prevent over-soaking.
  • Deodorize with dry powders: Baking soda is commonly used to absorb odor and moisture.
  • Be patient with old stains: Dried stains may need several gentle cleaning cycles.
  • Dry completely: Good airflow and time are essential before putting bedding back on.
  • Protect going forward: A waterproof cover and quick response to accidents help keep your mattress cleaner longer.

With calm, consistent steps, you can usually significantly improve both the look and smell of a mattress after a pee accident, without harsh products or complicated routines.