How To Air Out a Mattress: Simple Steps for a Fresher Bed

If you’re wondering how to air out a mattress—whether it’s new, has a slight odor, or just needs a refresh—you’re in the right place. This guide explains why airing out matters, how to do it safely, and how often to repeat it to help keep your mattress comfortable and fresher over time.

What Does It Mean To “Air Out” a Mattress?

Airing out a mattress simply means exposing it to fresh air (and sometimes sunlight) to help:

  • Release any trapped odors (like “new mattress smell” or stale air)
  • Allow moisture and humidity to evaporate
  • Reduce buildup of dust and everyday mustiness

You can air out a new mattress right after unboxing or an older mattress as routine care.

How To Air Out a Mattress (Step-by-Step)

1. Prepare the Room or Space

If you’re airing the mattress indoors:

  • Open windows and doors for cross-ventilation.
  • Turn on a fan to keep air moving.

If you’re airing outside:

  • Choose a dry, clear day.
  • Find a clean, raised surface (such as a clean bench or sturdy table) to avoid ground moisture.

2. Strip the Bed Completely

Remove:

  • Sheets
  • Mattress protector
  • Blankets and comforters
  • Any mattress topper

This exposes as much of the mattress surface as possible to moving air.

3. Stand or Lay the Mattress for Maximum Airflow

For most mattresses, you can:

  • Lay it flat on a bed base or clean surface, then
  • Tilt or stand it on its side for part of the time so air reaches both sides.

Avoid bending or folding the mattress in ways that go against the manufacturer’s guidance, especially with foam or hybrid designs.

4. How Long Should You Air Out a Mattress?

  • New mattress: Many people prefer to air it out for at least a few hours, and up to 24 hours or more if the odor is noticeable.
  • Existing mattress:
    • Light refresh: 1–3 hours in a well-ventilated room.
    • Deeper refresh: 4–8 hours if possible.

If the smell is strong, you can repeat the process over several days.

5. Is Sunlight Helpful?

Moderate sunlight can help with freshening and drying, but be cautious:

  • Short, indirect exposure is usually fine.
  • Avoid long, intense direct sun, especially for foam mattresses, as it may affect materials over time.
  • If you’re unsure, keep it in a bright, well-ventilated room instead of full outdoor sunlight.

Why Should You Air Out a Mattress?

Airing out a mattress can:

  • Help release initial factory or packaging odors, especially from foam or compressed mattresses
  • Allow everyday moisture from sweat and humidity to evaporate
  • Support a fresher sleep surface between deeper cleanings

It is one part of basic mattress use & care, alongside using a protector, rotating when recommended, and cleaning spots as needed.

How Often Should You Air Out a Mattress?

There’s no single rule, but many people find this routine helpful:

  • New mattress: Air out once, right after unboxing.
  • Regular care: Every 1–3 months, air out for a few hours when you wash bedding.
  • After spills or high humidity: Air out as soon as practical (after cleaning up any liquid according to care instructions).

More frequent airing may be useful in humid climates or if the mattress is on a very low or solid base where airflow is limited.

Can You Air Out a Mattress Every Day?

You can briefly air out your mattress daily by:

  • Pulling back or folding down heavy bedding for a while each morning
  • Opening a window or running a fan to help moisture escape

This doesn’t replace longer airing sessions, but it can support a fresher-feeling bed over time.

Common Questions About How To Air Out a Mattress

Do I need to air out a brand-new mattress?

Many new mattresses, especially those shipped compressed, have a noticeable new smell at first. Airing out in a well-ventilated room for several hours to a day is a common practice to help that odor fade faster.

Is it safe to sleep on a mattress before it’s fully aired out?

Most mattresses can be used shortly after they are unpacked and have fully expanded, but some people prefer to wait until most of the initial smell has reduced. If the odor bothers you, airing it longer before use is reasonable.

Can baking soda help while airing out?

Sprinkling a light layer of dry baking soda on the mattress surface and letting it sit while you air out the mattress is a common home method to help with lingering scents. Vacuum thoroughly afterward using an upholstery attachment. Always keep baking soda dry and avoid rubbing it into the fabric.

Should I remove the mattress from its base?

You don’t have to, but lifting or tilting it away from solid surfaces can:

  • Increase airflow
  • Help both top and bottom dry and refresh

If the mattress is heavy, move it carefully or with help to avoid strain or damage.

⚡️✔️ Quick Mattress Takeaways

Key points consumers should understand about How To Air Out a Mattress

  • Airing out a mattress means exposing it to fresh air (and sometimes light) to reduce odors and moisture.
  • For a new mattress, air it out for several hours to 24 hours in a ventilated room if the smell is noticeable.
  • For an existing mattress, strip the bed and air it out for 1–8 hours, depending on how much refresh it seems to need.
  • Open windows and use fans to improve airflow; use cautious, limited sunlight, especially with foam.
  • Repeat every 1–3 months, or more often in humid conditions or after cleaning up spills.
  • Daily habits like pulling back bedding and letting the mattress breathe help support a fresher sleep surface over time.

By understanding how to air out a mattress and working it into your regular care routine, you can support a mattress that feels fresher and more comfortable for longer.