How To Get Rid Of Smell From Mattress: Simple Steps That Actually Help

If you’re wondering how to get rid of smell from mattress, you’re not alone. New mattresses, spills, sweat, or pets can all leave behind odors that make your bed feel less fresh. This FAQ-style guide walks through why mattresses smell, what’s normal, and practical ways to remove odors and keep them from coming back.

Why does my mattress smell in the first place?

Mattress odors usually come from a few common sources:

  • New mattress or packaging smells – often called “off-gassing,” especially with foam and hybrid models.
  • Sweat and body oils – build up over time, especially without a mattress protector.
  • Spills and accidents – drinks, food, or bodily fluids that weren’t fully cleaned.
  • Pets – fur, dander, and occasional accidents.
  • Humidity and poor ventilation – can create a musty, stale odor.

Most smells are surface-level and respond well to airing out, cleaning, and deodorizing. Strong, persistent odors may need deeper attention or professional cleaning.

How To Get Rid Of Smell From Mattress: What should I try first?

Start with the least invasive, most common solutions. Often, a combination of these works best.

1. Air out the mattress

  1. Strip all bedding (sheets, covers, protector).
  2. Open windows and let fresh air circulate.
  3. If possible, stand the mattress upright to expose more surface area.
  4. Let it air out for several hours, or longer if the smell is strong.

Fresh air helps release trapped odors and moisture, especially for new mattresses.

2. Use baking soda to neutralize odors

Baking soda is a go-to for people searching how to get rid of smell from mattress because it’s simple and widely available.

  • Lightly sprinkle a generous, even layer over the entire mattress surface.
  • Gently rub it in with a clean, dry cloth to reach into the fabric.
  • Leave it for at least a few hours; overnight is even better.
  • Vacuum thoroughly using an upholstery attachment.

You can repeat this process several times for stubborn odors.

Can I clean the mattress surface to remove smells?

Yes, but be careful with moisture. Mattresses don’t dry as quickly as sheets, and too much liquid can make odors worse.

3. Spot clean with a mild solution

  • Mix a small amount of gentle detergent with cool water.
  • Lightly dampen (don’t soak) a clean cloth with the solution.
  • Blot the affected area; avoid scrubbing hard, which can push liquid deeper.
  • Follow with a dry cloth to absorb extra moisture.
  • Let the mattress air dry completely before putting bedding back on.

4. Dealing with specific smells (urine, food, sweat)

For stronger organic odors:

  • Use a vinegar and water mixture (lightly applied) to help neutralize smells:
    • One part white vinegar to two parts water in a spray bottle.
    • Very lightly mist the area; do not saturate.
    • Blot with a dry towel, then apply baking soda afterward and vacuum when dry.

If odor or staining is extensive, professional upholstery or mattress cleaning is often more effective than home methods.

Is it normal for a new mattress to smell?

Yes, a new mattress may have a noticeable odor from:

  • Fresh foam
  • Adhesives
  • Plastic packaging

This is often described as a “chemical” or “new product” smell. It usually fades within days to a few weeks.

To help it dissipate:

  • Unbox in a well-ventilated room
  • Remove plastic wrap immediately
  • Air it out uncovered before making the bed
  • Use baking soda if the smell is lingering

If the odor doesn’t improve with time and ventilation, contact the seller or manufacturer for guidance.

When should I be concerned about mattress smells?

Most smells are harmless, though unpleasant. However, pay attention to:

  • Persistent, musty odors that don’t improve with cleaning and airing out
  • Visible spots that look like mold or heavy staining
  • Strong smells that appear after water damage or a major spill

In these cases, deeply trapped moisture may be involved, and professional assessment or cleaning is usually safer than trying to fix it with DIY methods alone.

How can I keep my mattress from smelling in the future?

Once you’ve figured out how to get rid of smell from mattress, it helps to prevent new odors from building up.

  • Use a washable mattress protector to block sweat and spills.
  • Wash sheets and pillowcases regularly, according to fabric instructions.
  • Let the mattress breathe by occasionally stripping the bed for a few hours.
  • If possible, rotate or flip (if designed for it) to even out wear.
  • Avoid eating or drinking in bed to reduce spill risks.
  • Keep pets off the mattress if odors and hair are a concern.

✔️ Quick Mattress Takeaways

Key points to understand about how to get rid of smell from mattress:

  • Start simple: Airing out the mattress and using baking soda are effective first steps for most odors.
  • Avoid soaking the mattress: Use light spot cleaning with mild detergent or diluted vinegar, then dry thoroughly.
  • New mattress odors are common: Off-gassing smells usually fade with time, ventilation, and occasional deodorizing.
  • Watch for musty, lingering odors: These may signal deeper moisture issues that benefit from professional cleaning.
  • Prevention helps most: A mattress protector, regular washing of bedding, and good airflow greatly reduce future smells.

With steady, gentle care and the right cleaning steps, you can refresh your bed and keep it more neutral-smelling over time without harsh treatments or complicated routines.