How To Restore A Memory Foam Mattress Topper?

How to restore a memory foam mattress topper? You might ask. Memory foam mattress toppers are not just plush pieces of bedding, they are an investment in your comfort and sleep quality.

But with time, they can sag and lose their plushness, much like a well-loved sofa. So, how can we rejuvenate them to their original glory?

Fascinatingly, the memory foam, originally developed by NASA in the 1960s, took the bedding industry by storm due to its ability to mould to the body, providing unparalleled comfort.

Despite this, they’re not immune to wear and tear, just like any other bedding item.

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

In this comprehensive guide, we’ll unveil:

  • Easy DIY methods to bring back the lushness of your memory foam mattress topper.

  • Simple practices to get rid of unwanted stains and odours.

  • Ways to prevent sagging and maintain the firmness of your topper.

So, buckle up as we dive into the fascinating world of memory foam mattress topper care and restoration.

Why Is My Memory Foam Topper Losing Its Shape?

First off, let’s have a little chinwag about why your memory foam topper might be sagging or lumping up.

Now, don’t you go thinking it’s due to some mishap on your part. The cause is usually quite natural, and it’s all down to the unique properties of the memory foam itself.

Memory foam is a rather clever sort of material. It responds to your body’s heat and pressure to mould to your shape, providing that snug, personalised feel that we all love so much.

However, just like the elastic on your favourite pair of socks, over time the material can start to give a bit and may not bounce back to its original form as readily.

A hand pressing down on a mattress

Pressure and Heat

When you snooze on your topper, your body’s natural heat warms up the memory foam, making it softer and more pliable. Meanwhile, the pressure from your body weight helps it mould to your shape. Now, this is all fine and dandy when the foam is new and spry. However, over time, the memory foam may start to retain these impressions, leading to areas of flattening or sagging. This phenomenon is sometimes referred to as ‘memory foam fatigue’.

Age and Quality

Age is another factor at play here. Like a fine wine, memory foam toppers have a lifespan, and their ability to retain shape can decrease over time. It’s also worth noting that the quality of the memory foam can greatly impact its lifespan. Not all foams are created equal, and a cheaper, lower-density foam may sag quicker than a high-quality, high-density one.

Key Signs Your Memory Foam Topper Needs Restoration

Here are some signs of a memory foam topper in need of restoration:

  1. Visible Sagging or Flattening: If your topper is visibly sagging in the middle or other areas, it’s a clear sign that it’s losing its shape.

  2. Lumps or Indentations: These can occur due to consistent pressure on certain areas.

  3. Discolouration: This might be due to spills or sweat, leading to staining or discolouration.

  4. Unpleasant Odour: Over time, your topper might absorb odours which could signal the need for a refresh.

  5. Decreased Comfort: If your topper isn’t as comfortable as it once was, it might be losing its supportive properties.
A hand touching a mattress topper

Restoring Your Memory Foam Mattress Topper: Step by Step Guide

Now, let’s dive into the specifics on how to restore a memory foam mattress topper. The first step is always to refer to the manufacturer’s instructions. However, if those aren’t available, here are some general steps that can help you restore the comfort of a lumpy memory foam mattress topper.

Fluffing Your Memory Foam Mattress Topper

Fluffing your topper can bring back some of its original firmness and support. Here’s how:

  1. Remove the topper from your mattress.

  2. Lay it out on a clean, flat surface.

  3. Use your hands to gently fluff and reshape the topper.

  4. Leave the topper to rest and regain its shape for 24 hours before replacing it on your bed.

Pro Tip: If you’re having trouble with a slipping topper, check out this guide on how to stop your mattress topper from sliding.

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

Refreshing Your Memory Foam Mattress Topper

Wondering how to refresh an old memory foam mattress topper? Here’s how:

  1. Sprinkle baking soda over the surface of the topper and let it sit for at least 8 hours. This absorbs odours and any moisture.

  2. After the baking soda has done its job, vacuum it off thoroughly.

  3. Flip the topper over and repeat the process on the other side.

To learn more about cleaning your memory foam mattress topper, you can visit our guide here.

Dealing with Discolouration

Discolouration is another issue that can affect your memory foam mattress topper. In order to restore a discoloured memory foam mattress topper, you’ll need to do the following:

  1. Create a mixture of equal parts distilled white vinegar and water.

  2. Apply this solution sparingly to the discoloured areas, avoiding over-saturating the foam.

  3. Use a cloth to gently blot and lift the stain.

  4. Once you’ve treated the area, let it air dry thoroughly.

More Techniques For Restoring Your Memory Foam Mattress Topper

In part one, we looked at some simple steps to fluff, refresh, and deal with discolouration on your memory foam mattress topper.

Now let’s explore some more advanced methods for restoring your mattress topper back to its prime.

Steam Cleaning Your Memory Foam Mattress Topper

Steam cleaning is an effective way of refreshing and sanitising your topper. The heat from the steam helps to kill dust mites and bacteria, while also helping to fluff up the memory foam.

Follow these steps to steam clean your topper.

A pair of hands putting a mattress topper over a mattress
  1. Fill your steam cleaner with water and heat it according to the manufacturer’s instructions.

  2. Slowly move the steam cleaner across the surface of the mattress topper, ensuring not to saturate it with water.

  3. Once you’ve steam cleaned the entire topper, let it air dry completely before using it again.

Pro Tip: While steam cleaning is effective, remember that memory foam should never get too wet. Use the steam cleaner sparingly to avoid damaging your topper.

Fixing a Sagged Memory Foam Topper

Sagging can occur due to constant pressure in one area, leading to a less comfortable sleep. Here are some steps to fix a sagged memory foam mattress topper:

  1. Take the topper off your bed and lay it flat on the floor.

  2. Roll the topper tightly, starting from one end and working your way to the other.

  3. Leave the topper rolled for at least 24 hours. This can help to redistribute the foam and eliminate sagging.

  4. Unroll the topper and let it regain its shape for another 24 hours before putting it back on your bed.

To understand more about sagging and its causes, consider reading this article.

Advanced Techniques And Considerations For Memory Foam Toppers

In the previous sections, we’ve covered the basics and intermediate steps of maintaining and restoring a memory foam mattress topper.

Now, let’s take a more in-depth look at advanced restoration techniques, additional tips for upkeep, and signs that your topper might be in need of a refresh.

Reviving a Flat Memory Foam Topper

Your memory foam topper might occasionally go flat due to regular use. However, there are ways to revive a flat memory foam mattress topper:

A hand putting a fitted sheet over mattress topper and mattress
  1. Firstly, try flipping the topper. This simple act can redistribute the weight and give the flat side a break.

  2. You could also rotate the topper 180 degrees, so that the area that receives the most pressure (like your hip area if you’re a side sleeper) is moved.

  3. For a topper that’s completely flat, consider replacing it. Sometimes, the best solution is to start fresh.

Need to know more? You can find additional details on our Dream HQ guide.

Addressing Odours in Your Memory Foam Topper

If your topper has started to develop an unpleasant odour, don’t worry. Here are some tips to deal with memory foam topper odour restoration:

  1. Sprinkle a generous amount of baking soda on the topper and let it sit for at least 8 hours. Baking soda is great at absorbing odours.

  2. After the waiting period, vacuum the baking soda off using the upholstery attachment of your vacuum cleaner.

For more tips, you can read our post on how to clean a memory foam mattress topper.

When to Restore Your Memory Foam Topper?

Knowing when to restore your topper is just as important as knowing how. Here are some signs that your topper needs some attention:

  • Your topper is flat or sagging.

  • It has developed an unpleasant smell.

  • It’s not providing the same level of comfort or support.

  • The topper has become discoloured.

If you spot any of these signs, it might be time to give your topper a little TLC!

Taking Your Memory Foam Topper Care To The Next Level

By now, you’re a dab hand at restoring and maintaining your memory foam mattress topper.

But let’s not stop there. In this section, we will be delving into some pro-tips and additional considerations to take your topper care routine to the next level.

Can You Cut a Memory Foam Mattress Topper?

Sometimes, your memory foam mattress topper might be a tad too big for your bed or a little too small for your liking. In such cases, you might wonder, “Can I cut my memory foam mattress topper?“.

The answer is, yes, you absolutely can! However, there are some guidelines you should follow to ensure a clean and safe cut.

We’ve put together a step-by-step guide on
how to cut a memory foam mattress topper for you.

A hand pressing down on a mattress topper

The Right Bedding for Your Memory Foam Topper

Choosing the right bedding to go with your memory foam topper is key. Not only does it add to the comfort factor, but it also helps protect your topper from spills and stains. We recommend using a mattress protector and fitted sheets that are breathable and hypoallergenic. To learn more about the best bedding options, have a look at our article on choosing the right bedding.

Regular Cleaning and Rotation

While we’ve covered cleaning and rotating your topper in the previous sections, it’s worth stressing that this should be a regular part of your mattress care routine. We recommend cleaning your memory foam mattress topper every three months and rotating it every six months. Regular rotation helps prevent the foam from wearing out unevenly, thus increasing the lifespan of your topper.

The Lifespan of a Memory Foam Topper

Although they’re built to last, memory foam toppers don’t last forever. On average, a high-quality memory foam topper should last between 5 to 7 years, depending on how well it’s maintained and how often it’s used. To get the most out of your topper, follow the care and maintenance tips we’ve shared in this and previous sections.

Benefits Of Having A Memory Foam Mattress Topper

Benefit Description
Instantly softens a hard mattress Provides added comfort to a firm mattress
Relieves back pain Provides full-body support and ensures correct spine alignment
Cheaper than a brand new mattress A cost-effective way to improve the comfort of your mattress
Cooler night's sleep Made of breathable material that wicks moisture away from the body and is topped with a cooling gel that keeps you from getting too hot
Minimizes the risk of getting bedsores Eliminates pressure points and provides extra cushioning underneath tender areas
Increases the lifespan of your mattress Takes some pressure off your mattress, meaning that it won't get worn down as quickly
Moulds to your body shape Provides extra comfort and soothes pressure where you need it most
Reduces pressure Provides pressure relief and is endorsed by chiropractors and doctors


How often should I clean my memory foam mattress topper?

You should aim to give your memory foam mattress topper a good clean every three months. This helps to keep it fresh, reduce allergens, and maintain its comfortable and supportive qualities.

Can I cut my memory foam mattress topper if it’s too big?

Absolutely, you can cut your memory foam mattress topper to size. Be sure to follow specific guidelines to ensure a clean and safe cut. Refer to our step-by-step guide on our website for detailed instructions.

What bedding should I use with my memory foam mattress topper?

For the best comfort and protection, opt for a mattress protector and fitted sheets that are breathable and hypoallergenic. This helps to safeguard your topper from spills, while also ensuring a cool and comfortable night’s sleep.

How often should I rotate my memory foam mattress topper?

To ensure even wear and tear, aim to rotate your memory foam mattress topper every six months. Regular rotation helps prevent the foam from wearing out unevenly, thus extending the lifespan of your topper.

How long does a memory foam mattress topper typically last?

On average, a high-quality memory foam topper should last between 5 to 7 years, depending on how well it’s maintained and how often it’s used. Regular care and upkeep can help prolong its lifespan.


From understanding how to restore your memory foam mattress topper to appreciating how a bit of elbow grease can rejuvenate your sleep experience, we’ve taken a deep dive into all things mattress topper care. Let’s take a moment to remind ourselves of what we’ve covered:

  • The process of refreshing a memory foam mattress topper including airing it out, removing stains, and deodorising it.

  • DIY methods for fixing common issues such as sagging, discolouration, and lumps in your mattress topper.

  • How steam cleaning can help in maintaining the cleanliness and longevity of your memory foam topper.

  • Crucial tips for maintaining the shape, firmness, and overall quality of your topper, ensuring you get the most out of your investment.

At the end of the day, maintaining the quality and comfort of your memory foam mattress topper comes down to a few simple but effective steps. And as a mattress enthusiast or someone looking for a comfortable sleep, having these tricks up your sleeve can significantly enhance your bed’s longevity and your quality of sleep.

Be sure to check out some of our other blogs for more sleep-related tips and guides:

Here’s to many nights of comfortable, restful sleep on your well-cared-for memory foam mattress topper. Sweet dreams!

  1. The Sleep Shop has a comprehensive guide on how to restore memory foam. It is a great resource for anyone looking to breathe new life into their memory foam mattress or topper.

  2. If you’ve encountered issues with your mattress topper not expanding, Mattress Nut provides some handy solutions to tackle the problem.

  3. Each Night offers a thorough guide on how to restore and fix a sagging memory foam mattress. This guide is particularly helpful for those who are dealing with sagging issues in their memory foam mattresses or toppers.

– Article by Lewis Hugh

Memory Foam Mattress Topper - Frequently Asked Questions (FAQ)

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