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How to get pee smell out of the mattress? A complete guide

Accidents happen, and urine stains and odors on a mattress can be particularly challenging due to the mattress’s absorbency. Addressing them quickly and thoroughly is key to preventing lingering smells and potential mold growth.

Why urine odors linger in mattresses

Urine contains uric acid crystals, urea, and other organic compounds. When urine dries, these crystals become highly concentrated and are extremely difficult to remove with just water. As humidity changes, these crystals can reactivate, releasing the pungent ammonia-like odor. If not completely neutralized, the odor can persist for a long time, and the moisture can also lead to mold and mildew.

First response: blot and absorb excess urine

Act immediately! The quicker you respond, the easier the stain and odor will be to remove.

  1. Blot, Don’t Rub: Grab old towels or a thick stack of paper towels. Press down firmly on the wet area to absorb as much urine as possible. Stand on the towels if needed to apply pressure.
  2. Repeat: Continue blotting with fresh, dry towels until no more moisture transfers from the mattress. Avoid rubbing, as this pushes the urine deeper.

How to get pee smell out of the mattress?

Cleaning fresh urine

Vinegar spray solution

White vinegar is excellent for neutralizing the alkaline salts in urine and combating odors.

  1. In a spray bottle, mix equal parts white vinegar and warm water.
  2. Generously spray the stained area. You want to saturate the area enough to reach the depth the urine penetrated, but avoid oversaturating the mattress.
  3. Let the solution sit for 10-15 minutes.
  4. Blot Again: Use clean, dry towels to blot up as much of the vinegar solution as possible.

Blotting technique

The key to removing the stain and odor is thorough blotting.

  • Always use clean, dry towels.
  • Apply firm pressure.
  • Replace towels frequently as they become damp or soiled.
  • Work from the outside of the stain inwards to prevent spreading.

Treating old or deep-set odors

For stains that have dried or persistent odors, a more powerful approach is needed.

Baking soda paste

Baking soda is a natural deodorizer that effectively absorbs odors.

  1. After blotting with the vinegar solution (and allowing it to air dry a bit), or for an old, dry stain, generously sprinkle a thick layer of baking soda over the entire affected area. Don’t be shy; you want a good absorbent layer.
  2. Let the baking soda sit for at least 8 hours, or preferably 24 hours. The longer it sits, the more odor it will absorb.
  3. After waiting, thoroughly vacuum up all the baking soda using your vacuum’s upholstery attachment.

Hydrogen peroxide or enzymatic cleaners

For very stubborn or old urine odors, especially pet urine, enzymatic cleaners are often the most effective.

  1. Hydrogen Peroxide: Mix 8 ounces of 3% hydrogen peroxide with 3 tablespoons of baking soda and a few drops of liquid dish soap. Spray or gently blot this solution onto the stain. Let it air dry completely. (Test first, as peroxide can lighten some fabrics).
  2. Enzymatic Cleaners: These cleaners contain beneficial bacteria that “eat” the uric acid crystals and organic matter causing the odor.
    • Saturate the stained area with the enzymatic cleaner (follow product instructions).
    • Allow it to air dry completely (this can take hours or even a day). Do not blot immediately, as the enzymes need time to work.
    • Once dry, vacuum any residue. These are highly effective for breaking down urine at a molecular level.

Drying tips: sunlight, fans, ventilation

Proper drying is essential to prevent mold and ensure odor removal.

  • Sunlight: If possible, move the mattress outdoors into direct sunlight. UV rays are excellent for sanitizing and drying.
  • Fans: Place fans around the mattress, directing air onto the cleaned area to speed up drying.
  • Ventilation: Open windows in the bedroom to improve airflow.
  • Do NOT Use Heat: Avoid using heat (like a hairdryer or steam cleaner) as it can set the stain and odor.

Preventive maintenance & mattress protectors

  • Waterproof Mattress Protector: This is your best defense. Invest in a high-quality, breathable, waterproof mattress protector. It creates an impermeable barrier against spills and accidents. Wash it regularly.
  • Quick Response: Always address spills immediately.
  • Ventilate: Continue to air out your mattress occasionally by removing bedding and allowing it to breathe.

Don’t let accidents ruin your mattress! Amazing Maids offers specialized mattress cleaning and odor removal services. Get a free quote today for a fresh and clean sleep!