How To Get Smell Out Of a Mattress: Simple FAQ Guide

If you’re searching for “How To Get Smell Out Of a Mattress”, you’re likely dealing with odors from sweat, spills, mustiness, or a new-mattress smell. This guide walks through practical, home-friendly steps to freshen your mattress, plus when odors might signal a bigger issue.

Why Does My Mattress Smell in the First Place?

Mattress odors usually come from a few common sources:

  • Body sweat and skin oils that build up over time
  • Spills like drinks, food, or pet accidents
  • Musty or damp smells from humidity or stored mattresses
  • New mattress odors from foams and fabrics airing out
  • Smoke or strong household smells absorbed into the materials

Understanding the source helps you choose the safest and most effective way to get the smell out of a mattress.

How To Get Smell Out Of a Mattress: Step-by-Step

1. Start With Basic Airing Out

Q: Is fresh air really enough to help?

Often, yes—especially for new or mild odors.

  • Strip all bedding and mattress protectors
  • Open windows and doors to improve airflow
  • If possible, stand the mattress on its side to expose more surface area
  • Let it air for several hours or longer

Fresh air helps release trapped odors and moisture, which is a key first step before deeper cleaning.

2. Use Baking Soda to Neutralize Odors

Q: Why is baking soda recommended?

Baking soda is widely used because it can help absorb moisture and neutralize common odors without harsh chemicals.

How to use it:

  1. Lightly vacuum the mattress surface first
  2. Sprinkle a generous, even layer of baking soda over the entire mattress
  3. Gently work it in with your hand or a soft brush
  4. Leave it on for at least a few hours; many people prefer to leave it all day
  5. Vacuum thoroughly to remove all residue

For stronger smells, you can repeat this process more than once.

3. Spot-Clean Smelly Areas Safely

Q: How do I treat a specific smelly spot?

For localized smells from spills or accidents:

  • Blot, don’t rub any fresh spill with a clean, dry cloth
  • Mix a small amount of mild soap with cool water
  • Lightly dampen a cloth with the soapy solution and dab the area
  • Follow with a second cloth dampened with plain water to remove soap residue
  • Press a dry towel on top to absorb as much moisture as possible
  • Let the mattress air dry completely

Avoid soaking the mattress. Too much water can lead to deeper odors and potential damage.

4. Can I Use Vinegar or Other Household Deodorizers?

Some people use diluted white vinegar in a spray bottle as a deodorizer. If you try this:

  • Always dilute with water
  • Lightly mist instead of saturating
  • Allow plenty of time and airflow for the mattress to dry

Avoid strong chemical cleaners or anything that leaves a sticky residue, as these can create new odors or affect mattress materials. If you’re unsure, test a very small, hidden area first.

5. What About Persistent, Musty, or “Damp” Smells?

Q: My mattress smells musty even after cleaning. What now?

A lingering damp or musty odor may suggest:

  • The mattress has absorbed moisture over time
  • It was stored in a humid space
  • There may be deeper staining inside the layers

You can try:

  • Placing the mattress in direct airflow (near an open window, fan, or dehumidified room)
  • Using baking soda treatments multiple times
  • Making sure the mattress is fully dry before putting sheets back on

If smells continue even after thorough drying and deodorizing, it may indicate odor or damage deep inside the mattress that surface cleaning cannot fully remove.

6. How Can I Prevent Mattress Odors in the Future?

Q: Once I get the smell out, how do I keep it fresh?

Simple, regular habits can make a big difference:

  • Use a washable mattress protector to shield against spills and sweat
  • Wash sheets and bedding regularly
  • Let the mattress air out occasionally by leaving it uncovered for a few hours
  • Clean up spills as soon as they happen
  • Keep the room well-ventilated and not overly humid

These steps help reduce how often you need to ask how to get smell out of a mattress in the first place.

✅ Quick Mattress Takeaways

Key points about How To Get Smell Out Of a Mattress

  • Start with airflow: Strip bedding and air out the mattress to release mild or new odors.
  • Use baking soda: It’s a common, gentle way to help neutralize smells and absorb moisture.
  • Spot-clean carefully: Treat spills with minimal water and mild soap; avoid soaking the mattress.
  • Be cautious with liquids and chemicals: Light misting and testing small areas first can help protect the materials.
  • Musty, damp smells can be stubborn: Repeated airing, drying, and baking soda may help, but deep odors can sometimes remain.
  • Prevention is easier than fixing: Mattress protectors, regular washing, and good ventilation are key to long-term freshness.

A mattress will naturally pick up some scent over time, but gentle cleaning, good airflow, and basic protection usually keep odors manageable. Knowing how to get smell out of a mattress helps you extend the usable life of your bed and maintain a more pleasant sleep environment.