How To Clean Dog Pee Out Of a Mattress: Simple Steps That Actually Work

Finding a wet patch on your bed can be stressful, but learning how to clean dog pee out of a mattress is straightforward once you know the right steps. This guide walks through exactly what to do, why it matters, and how to prevent lingering odors or stains.

What Happens When Dog Urine Gets Into a Mattress?

Dog pee doesn’t just sit on the surface. It can:

  • Soak deep into foam or padding
  • Leave yellow stains on the cover
  • Cause a strong ammonia-like odor
  • Attract your dog back to the same spot

Because mattresses are thick and absorbent, acting quickly gives you the best chance of removing both the stain and smell.

How To Clean Dog Pee Out Of a Mattress: Step-by-Step

1. Blot Up Fresh Urine Immediately

If the spot is still wet:

  • Place clean, dry towels or paper towels on the area.
  • Press down firmly to soak up as much moisture as possible.
  • Avoid rubbing, which can spread the urine deeper and wider.

The goal is to remove as much liquid as you can before it sets.

2. Apply a Vinegar and Water Solution

A simple, common cleaning mix can help neutralize odor and break down the urine:

  • Mix equal parts white vinegar and cool water in a spray bottle or bowl.
  • Lightly spray or pour onto the stained area until it’s damp but not soaked.
  • Let it sit for 10–15 minutes.
  • Blot again with clean towels to pull out the solution and remaining urine.

Vinegar helps reduce odor and is often used for pet accidents because it’s gentle on most mattress fabrics.

3. Use Baking Soda to Deodorize

Baking soda is widely used to absorb odors from fabrics and surfaces.

  • Sprinkle a generous layer of baking soda over the damp area.
  • Gently spread it so it covers past the visible stain.
  • Let it sit for at least several hours, or overnight if possible.
  • Once dry, vacuum thoroughly to remove all the baking soda.

If odor remains, this step can be repeated.

What If the Dog Pee Stain Is Old or Already Dry?

Dried urine can be more stubborn but is still often treatable.

Can I Still Remove Old Dog Pee From a Mattress?

In many cases, yes. You can:

  1. Lightly re-dampen the stained area with a vinegar and water mix.
  2. Allow it to sit to help loosen dried residue.
  3. Blot, then apply baking soda as above.

For very old or deep stains, you may need to repeat the process a few times. Set-in stains might leave a faint shadow, but odor and most discoloration can often be greatly reduced.

Is It Safe to Use Strong Cleaners on a Mattress?

Should I Use Bleach or Harsh Chemicals?

Using bleach or very strong cleaners directly on a mattress is usually not recommended because they can:

  • Damage the fabric or foam
  • Leave strong chemical smells
  • Potentially discolor the material

Gentler, water-based cleaning methods are typically preferred for mattresses. Always spot-test a small, hidden area first if you’re unsure how a cleaner will react.

How Do I Dry the Mattress After Cleaning?

A damp mattress can attract odors and mildew, so thorough drying is important:

  • Blot as much moisture as possible with dry towels.
  • Open windows or turn on fans to improve airflow.
  • If safe, place the mattress in indirect sunlight for a short time, which can help with drying and freshening.

Avoid putting bedding back on until the area feels completely dry to the touch.

How Can I Prevent Future Dog Pee Accidents on My Mattress?

While accidents happen, a few simple habits can help:

  • Use a waterproof mattress protector to create a barrier against liquids.
  • Take pets outside or to their designated area regularly.
  • If your dog has repeated accidents, consider limiting bedroom access until the issue is addressed.

A protector is especially useful because it allows you to clean the cover instead of the mattress itself.

✅ Quick Mattress Takeaways

Key points to understand about how to clean dog pee out of a mattress

  • Act fast: Blot fresh urine immediately to limit staining and odor.
  • Use gentle cleaners: A mix of white vinegar and water is a common first step for breaking down urine.
  • Deodorize deeply:Baking soda helps pull out odors from the mattress layers.
  • Handle old stains with patience: Dried dog pee may need repeated treatments for best results.
  • Skip harsh chemicals: Strong cleaners or bleach can damage materials and leave strong smells.
  • Dry thoroughly: Good airflow and time are essential to prevent lingering dampness and odor.
  • Protect the mattress: A waterproof protector makes future cleanups quicker and easier.

Knowing how to clean dog pee out of a mattress helps you respond calmly when accidents happen. With quick blotting, gentle cleaning solutions, and proper drying, many stains and smells can be reduced significantly, helping you maintain a fresher, more comfortable sleeping surface.