How to Fix Mattress Indentation: 7 Essential Tips And Hacks

If you face the same problem as I do “How to fix mattress indentation?”, you are in the right place! A mattress that is losing its shape may be harmful to your sleeping as well as have a negative impact on your neck and back.

It so happened that my old mattress began to sag and replacing it with a new one instantly was not possible. I started looking for information and found 7 interesting and useful hacks that I tested on my mattress.

Let’s find out the details and start with the causes of mattress indentation!

Causes Of A Sagging Mattress

In reality, mattresses can begin to fall after frequent use. It is an inevitable part of the lifespan of your mattress. As you rest on the foam, it will eventually soften, and as a result, you won’t be able to enjoy the same comfort as you did in the early days when it first appeared in your bed.

You can conclude that the type of mattress affects its longevity and durability. Here are the most popular kinds of mattresses as well as the reasons they may slide in time:

Causes Of A Sagging Mattress

1. Innerspring Mattresses

These mattresses are made of metal coils for their construction. They lose their stretch with time and pass, the top layer becomes soft. These causes result in the mattress creaking and mattress indentations.

Innerspring mattresses

2. Hybrid Mattresses

Hybrid mattresses look like conventional spring mattresses however they have the added benefit of foam or memory foam that prevents sliding. The mattress can last for quite a while as the coils remain in good shape and will not change shape once the compressing mattress has decompressed.

Hybrid mattresses

3. Memory Foam Mattresses

Memory foam mattresses have the capability of returning to their original shape when it’s made from high-quality foam. However, a less expensive base mattress or memory foam mattress indentations can result in premature destruction.

As the memory foam mattress gets older, it may begin to lose its shape across different areas.

Memory foam mattresses

What can you tell whether it is repairable or needs to be disposed of? Here are some suggestions that will aid you in determining the issue of a sagging memory foam mattress.

How to Fix Mattress Indentation? 6 Effective Methods

Now let me introduce you to the methods how to fix mattress indentation, that I have experienced and, in the end, tell you which worked best for me.

Method 1. Use A Mattress Topper Over The Existing Mattress

Mattress toppers are things that can be put over an old mattress in order to offer additional relief from back pain in all the places where your body requires it:

  • They are available from manufacturers with a range of materials like latex, memory foam, feather, down, and wool.
  • The typical height of the topper is between 2 and 5 inches.
  • The benefit of this is that it will eliminate the mattress indentations, providing them with more thickness and softness, and making the surface level.
Use A Mattress Topper Over The Existing Mattress
Be aware of this: The mattress topper isn’t a complete replacement for your mattress, it is not a replacement for it but will help to extend the life of the mattress.

Method 2. Use A Mattress Helper

It is possible to correct a mattress indentation by using a mattress helper:

  • This device is typically made of polyurethane.
  • It works best when used in conjunction with spring blocks or a spring platform.
  • The mattress helper provides you with moderate to firm support, which eliminates the issue.

Place the mattress onto the mattress indentation area and lie back. It is crucial to be aware that these assisters are usually designed for one person, and should you have the size of a queen or king-size mattress and share it with a friend or partner there will be two mattress helpers.

Use A Mattress Helper
Attention! You must be aware that a few clients are complaining that their bed was unable to be lifted to the point at which it would be finished. It could be because the mattress is not firm enough and could not be addressed that way.

In any case, Mattress Helper could be an excellent solution if mattress sagging is becoming.

Method 3. Use A Mattress Helper And Mattress Topper At The Same Time to Fix Mattress Indentation

It’s definitely more expensive, however for some, it might be the best option to get an entirely new mattress.

  • By using a memory mattress topper upper your lumpy mattress, you will have support while enjoying the extra comfort of the top layer.
  • This will ensure that your mattress provides an appropriate alignment and support for your hips, shoulders, and all of the body.
  • This will enable you to increase sleep quality, and peaceful sleep but will also ease the pain.
Use A Mattress Helper And Mattress Topper At The Same Time to Fix Mattress Indentation

Method 4. Rotate Your Mattress

It is recommended to rotate your mattress at least once every three months in order to keep it from sagging.

  • Just turn the foot and head of the mattress.
  • This can extend the life of your mattress so that it won’t require being replaced as frequently.
  • If you’re mattress indentation, don’t worry about the fact that rotating your mattress can help.
  • If you turn your mattress, regions which were previously put under the greatest pressure cease to do the same.
  • Additionally, the pressure you feel from your hips and shoulders will extend to other regions of your mattress that aren’t yet in a state of sagging.
Rotate Your Mattress
Warning! Certain memory foam and latex mattresses are not to be turned. Check the manufacturer’s guidelines prior to doing this.

Method 5. Use Additional Cushions

In addition, you can utilize additional pillows to avoid mattress sagging. However, keep in mind that these are only temporary solutions to your sleeping.

  • Make use of additional pillows in the event that your mattress is sinking.
  • If you place a pillow on your back legs and thighs you’ll get an ideal night’s sleep.
  • Think about pillows that offer excellent shape retention.
Use Additional Cushions
Important! A few manuals and websites advocate placing pillows directly under the mattress, but I strongly advise against this since it’s unlikely to offer better mattress support, however, it could decrease the longevity of your mattress.

Method 6. Replace The Bed Sleep Foundation Or Bed Frame

In many cases, the sleep foundation of your bed that supports your mattress could cause the mattress to sag, which is too late.

  • The slats may cause mattress indentation.
  • If they are too big and the area is most likely to suffer from this problem.
  • Certain mattress manufacturers specify an appropriate distance between the slats of the bed frame to prevent mattress sagging.
  • The mattress might not be old enough to provide the right mattress foundation. A good bed frame could lead to the mattress sinking.
Replace The Bed Sleep Foundation Or Bed Frame

Method 7. Warranty Coverage

Check the mattress warranties:

  • It’s possible that your manufacturer provided you with a warranty in the event that your mattress sagging.
  • If the mattress warranty isn’t expired, the manufacturer will repair it without cost or exchange the mattress.
Warranty Coverage


Can I Fix A Sagging Mattress With Plywood?

You can really try to fix your sagging mattress with this method, but please note that it only works if there is a problem with the base and not the mattress itself.

How Do I Keep My New Mattress From Sagging?

Your new mattress should not sag. It is either a defect or a premature sagging of the mattress related to the bed base or the slats. If it is the former, contact the mattress manufacturer, they will most likely replace or repair it for free. If the second, you can use plywood as a temporary solution.

What Causes The Sagging Of A Mattress?

The main reasons are an improper use of the mattresses, poor bed base, repeatedly getting liquid on the mattress and the age of the mattress.

What’s An Easy Fix For A Sagging Mattress Besides Getting A New One?

Use your sagging mattresses mattress toppers or mattress helpers, invert the mattress, fix the bed base if necessary, use extra pillows under the shoulders and hips, and contact the manufacturer there is a high chance that you will be under warranty.


As you can see, you can fix a mattress indentation by not very expensive methods such as using pillows or a mattress helper, and more costly, like buying a memory foam topper and doing a more even sleep surface.

But in any case, it should be understood that this is a temporary solution, and you still have to replace the old sagging mattress with a new one, albeit a little later. As for me, the way to use a helper mattress and a topper mattress at the same time worked best for me.

Share your experience of how you dealt with a sagging mattress. Perhaps there are methods that I have not listed and our readers would be interested and useful to know exactly your way with this sleep problem.

Have you bought a helper mattress or memory foam topper for this purpose, or have you simply put pillows under your hips and shoulders? Any feedback and comments would be welcome. Thank you!

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