Do You Have To Air Out A Memory Foam Mattress Topper?

Do you have to air out a memory foam mattress topper?” This is a question many of us ponder when faced with the intriguing world of memory foam.

To cut a long story short, the answer is a resounding
yes! But why, you ask? Well, the reasons are as fascinating as memory foam itself.

Memory foam was first developed by NASA in the 1960s, intended to provide improved safety and comfort in their aircraft cushions.

Nowadays, it’s a popular choice for bedding due to its unique ability to mould to our bodies and evenly distribute weight.

Yet, as beneficial as these mattress toppers are, they come with an important maintenance task: airing out.

Did you know? Memory foam was initially made for NASA to improve the safety of aircraft cushions.

In this article, we’ll unravel the mysteries behind airing out your memory foam mattress topper:

  • Understanding the importance of airing out your memory foam mattress topper.

  • Mastering the effective ways to air out your topper.

  • Discussing the potential drawbacks of neglecting this process.

  • Providing top-notch tips to maintain the freshness of your topper.

Ready to delve into the ins and outs of keeping your memory foam mattress topper at its best? Let’s get started!

Understanding The Need For Airing Out Your Memory Foam Topper

Memory foam mattress toppers are loved for their unique ability to contour to our bodies, providing unrivalled comfort.

However, fresh out of the packaging, you may notice an odd smell. This is due to a process called
off-gassing, which happens when volatile organic compounds (VOCs) are released into the air.

To reduce the odour and allow the topper to fully expand, it’s crucial to air it out.

 If you’re wondering “what happens if I don’t let my memory foam air out?” – you may just be sleeping on a less comfortable and somewhat smelly mattress topper! So,
how long to let memory foam topper air out?

A pair of hands putting a mattress topper over a mattress

How Long To Let Memory Foam Topper Air Out?

Typically, you should let your new memory foam mattress topper air out for 24-48 hours before using it.

However, this can vary depending on the brand and the environmental conditions.

Factors such as temperature, humidity, and ventilation can impact how long it takes for the off-gassing smell to dissipate and the topper to fully expand.

Now that we’ve answered “do you have to let a mattress topper air out?” and discussed the duration, let’s explore the method itself.

A pair of hands placing a mattress topper on top of a mattress

How to Air Out a Memory Foam Topper Effectively

Airing out a memory foam topper is not rocket science, but there are some best practices to ensure the process is effective:

  1. Remove the Packaging: As soon as you receive your new memory foam mattress topper, remove it from the packaging to start the airing out process.

  2. Unroll and Lay Flat: Next, carefully unroll the topper and lay it flat on a clean, dry surface. Make sure the area is well-ventilated, as this will speed up the process.

  3. Rotate Regularly: Rotating the topper every few hours can promote even air exposure and aid in the off-gassing process.

  4. Keep Away from Direct Sunlight: While airing out, keep the topper away from direct sunlight, as this could degrade the foam.

By following these steps, you should have a fresh and fully expanded topper ready for use within a couple of days. In our article about how long does a memory foam mattress topper take to expand, we dive deeper into this topic.

Common Mistakes To Avoid When Airing Out Your Memory Foam Mattress Topper

While airing out a memory foam mattress topper might seem straightforward, there are several pitfalls that people commonly fall into. To make sure you’re on the right track, let’s identify these mistakes so you can avoid them.

  1. Rushing the Process: People often rush to use their new topper and neglect the airing out process. This haste can result in a less comfortable sleeping experience and a lingering odour.

  2. Ignoring the Environment: Not paying attention to environmental factors such as humidity and ventilation can prolong the airing out process. The topper needs a well-ventilated area to air out effectively.

  3. Direct Sunlight Exposure: A common misconception is that sunlight can aid in the airing out process. In reality, direct sunlight can degrade the foam and affect its longevity.

By steering clear of these errors, you ensure the best possible outcome for your new memory foam mattress topper.

Quick Methods to Remove Odour from a Memory Foam Mattress Topper

Sometimes, despite your best efforts, a stubborn smell may persist. Fear not, there are a few tricks you can employ to remove the odour and freshen up your topper:

  1. Baking Soda: This household staple is excellent at absorbing odours. Simply sprinkle a generous amount on your topper, let it sit for a few hours, then vacuum it up.

  2. Essential Oils: A few drops of your favourite essential oil can work wonders. Just add some drops to a spray bottle filled with water, lightly mist your topper, then let it air dry.

  3. Vinegar Spray: Another household hero, vinegar is great for neutralising odours. Like the essential oil method, you can create a vinegar spray and mist your topper. Just make sure to let it air dry completely before using it.

For more details on memory foam mattress topper care, check out our comprehensive maintenance guide.

When Should You Air Out Your Memory Foam Mattress Topper?

While airing out is vital when you first get your mattress topper, it’s a practice that should continue periodically throughout its lifespan. Generally, we recommend airing out your topper once every three to six months.

 Regular airing helps maintain freshness and can extend the life of your topper. To dive deeper into this topic, you can read our article on
how long do mattress toppers last.

How to Dry a Memory Foam Mattress Topper After Airing it Out

After airing out, you may wonder how to dry your memory foam mattress topper. The most important thing is to avoid direct heat, such as sunlight or heaters, which can damage the foam. The best method is simply to let it air dry in a well-ventilated area, away from direct sunlight.

This process may take a day or two, so patience is key. For more information on drying and storing your topper, check out our guide.

The Importance Of Regular Airing For Maintaining A Fresh Memory Foam Mattress Topper

As we’ve mentioned, airing out your memory foam mattress topper is not a one-time event. It’s a practice that should be part of your regular maintenance routine. By doing so, you can ensure the longevity of your topper and enhance your sleeping experience.

So, why is regular airing out so important?

  1. Prevents Moisture Build-up: Regular airing out helps to wick away any moisture that might have seeped into the topper. This can be particularly helpful in humid climates or for those who tend to sweat during their sleep.


  2. Maintains Freshness: Over time, body odours, dust, and allergens can get trapped in your topper. Regular airing can help to keep your topper smelling fresh and reduce allergens.


  3. Improves Lifespan: By airing out your topper, you’re aiding in its maintenance, which can help extend its lifespan.

For a deeper dive into how a mattress topper can enhance your sleeping experience, you can check out our article on do memory foam mattress toppers actually work.

Pros and Cons of Airing Out a Memory Foam Mattress Topper

While airing out a memory foam mattress topper has numerous benefits, it also comes with a few challenges. Understanding these can help you manage the process better.


  1. Enhanced Sleep Comfort: Airing out your topper helps to eliminate any initial odour and creates a more comfortable sleeping environment.


  2. Healthier Sleeping Environment: Regular airing can reduce allergens and provide a healthier environment, especially for those with allergies or asthma.


  1. Time-consuming: The process can take up to 72 hours, which might be inconvenient for some people.


  2. Requires Space: Airing out effectively needs a well-ventilated space, which might be a challenge for those living in smaller homes or apartments.

To better understand the worth of a memory foam mattress topper, feel free to explore our article on are memory foam mattress toppers worth it.

How to Speed Up the Airing Out Process

For those short on time, there are ways to expedite the airing out process:

  1. Use a Fan: Positioning a fan near the topper can increase air circulation and speed up the process.

  2. Increase Ventilation: Opening windows and doors in the room can allow for better air flow.

  3. Rotate the Topper: Rotating or flipping the topper during the airing process ensures all sides get aired out.

For more tips and tricks, be sure to check out our guide on how to make the most out of your mattress topper.

Proper Storage Tips For Memory Foam Mattress Toppers

Once you’ve aired out your mattress topper and it’s ready to use, there may come a time when you need to store it. Storing your memory foam mattress topper correctly is crucial to maintaining its freshness and longevity. But fret not! Here are some expert tips to guide you through the process:

  1. Clean your mattress topper: Before storing, make sure to clean your mattress topper. While a thorough airing out is always a good first step, for more detailed guidance on cleaning, have a look at how to clean a memory foam mattress topper.

  2. Ensure it’s dry: It’s paramount that your memory foam mattress topper is completely dry before you store it. This prevents mould and mildew growth, which can be a health hazard and damage the foam.

  3. Avoid folding or bending: Memory foam is not designed to be folded or bent for extended periods. Instead, try to lay the topper flat in storage, as this will maintain its shape and structure.

  4. Protect with a cover: Use a breathable cover to protect the topper from dust and other potential damage while it’s stored.

  5. Store in a cool, dry place: Heat and humidity can damage memory foam over time, so find a cool, dry storage space for your topper.

  6. Avoid placing heavy objects on top: Placing heavy objects on your stored topper can lead to permanent indentations in the foam.

Now that we’ve looked at how to store a memory foam mattress topper, let’s consider when it’s the right time to air out your topper.

Timing Your Topper’s Air Outs

As with all things in life, timing is key. When to air out your memory foam mattress topper depends on several factors, but let’s explore some general rules of thumb.

  1. Upon Purchase: As we’ve covered, you should air out a new topper for at least 24 hours before use.

  2. Seasonal Changes: Seasonal shifts can bring about changes in temperature and humidity. Airing out your topper during these times can help it adapt to the changing environment.

  3. After Cleaning: Always air out your topper after a thorough cleaning to ensure it is completely dry.

  4. If You Notice an Odour: If you begin to notice an unpleasant smell from your topper, it might be time for an airing out.

Remember, the frequency of airing out may vary depending on your specific situation. Be sure to listen to your nose and body – if you notice persistent odours or have allergic reactions, it may be time to air out your topper.

Benefits Of A Memory Foam Mattress Topper

Benefit Description
Increased comfort Memory foam mattress toppers mold to your body shape to give you an extra boost of comfort. They also soothe pressure where you need it most.
Relieves back pain Memory foam mattress toppers provide full-body support, which ensures that your spine is correctly aligned while you sleep. Long term, this kind of support and extra cushioning relieves chronic back, hip, shoulder, and neck pain.
Increases lifespan of mattress Memory foam mattress toppers take some pressure off your mattress, meaning that it won't get worn down as quickly. So you'll be able to get more use out of your mattress and enjoy it for longer!
Hypoallergenic Most memory foam mattress toppers are hypoallergenic, so you won't have to worry about your allergies waking you up in the night. They also repel dust mites, one of the most common causes of nighttime allergy flare-ups.
Customizable firmness Memory foam mattress toppers allow you to customize your bed to the firmness you want – you can instantly make a mattress that’s too firm feel softer and plusher.
Protects mattress Memory foam mattress toppers can protect your mattress from accidents, allergens, and other contaminants. They prevent stains and keep your mattress in better shape for more time, extending the typical lifespan of a mattress.


How long should I air out a new memory foam mattress topper?

Upon purchase, you should air out your new memory foam mattress topper for at least 24 hours. This allows any chemical smells, a by-product of the manufacturing process, to dissipate before you use it.

Can I fold or roll my memory foam mattress topper for storage?

Although folding or rolling your topper might seem like a space-saver, it’s best to avoid this. Keeping the topper flat helps maintain its shape and structure, which ensures it continues to provide optimal comfort.

How often should I air out my memory foam mattress topper?

There’s no hard and fast rule for this as it largely depends on your usage and the environment. However, it’s good practice to air it out upon purchase, with seasonal changes, after cleaning, or if you notice an odour.

Is it safe to use my memory foam mattress topper immediately after purchase?

While it’s not unsafe, it’s recommended to air it out for at least 24 hours before use. This helps get rid of any chemical smells and ensures the topper has fully expanded to its proper size.

Can I clean my memory foam mattress topper in the washing machine?

Typically, memory foam mattress toppers should not be machine washed. It’s best to follow manufacturer guidelines or refer to expert advice on how to clean your specific topper to avoid damaging it.


As you can see, understanding the how, why, and when of airing out your memory foam mattress topper is key to maintaining its freshness, extending its lifespan, and enhancing your overall sleep experience.

This article has comprehensively covered the importance of airing out a memory foam mattress topper, detailed methods on how to do it effectively, the potential drawbacks of skipping this process, and tips to maintain its freshness.

Let’s recap some of the key points we’ve covered:

  • Airing out a memory foam mattress topper is a crucial step to dissipate any chemical smells and allow it to fully expand.

  • This process should ideally be repeated periodically, especially with seasonal changes or after cleaning.

  • Effective airing out methods include placing the topper in a well-ventilated room, outdoors (weather permitting), or using a fan.

  • Skipping this process can result in unpleasant odours and impact the longevity of your topper.

  • Regular maintenance such as spot cleaning and turning the topper around periodically can also help keep it fresh.

If you enjoyed reading about the maintenance of memory foam mattress toppers, you might find these other articles useful:

  1. Are Memory Foam Mattress Toppers Good For Your Back?
  2. Can You Recycle Memory Foam Mattress Topper?
  3. Are Memory Foam Mattress Toppers Washable?

Remember, airing out your memory foam mattress topper is not just a one-off task, it’s a part of regular maintenance that ensures a fresh, comfortable, and durable sleep surface. Happy snoozing!

– Article by Lewis Hugh

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