How to Fix a Sagging Mattress

Updated

January 9, 2024

Sleep Society is reader-supported, that means if you buy something via a link on this page, we might earn a commission. Thank you kindly.

Are you looking for ways to fix your sagging mattress? If so, this article is your holy grail. This article will discuss how to fix a sagging mattress and also help you find the best mattress topper for a sagging mattress. Also, let's take a look at:

  • How to fix mattress sag?
  • How to fix a sagging pillow top mattress?
  • Ways to fix a mattress that sinks in the middle?
  • How to fix mattress springs?
  • How to fix mattress indentation?


To fix a sagging mattress, you can use a mattress topper or a mattress helper. Also, putting a pillow or comforter underneath the mattress can provide a temporary solution. You can even rotate or flip your mattress to prevent it from sagging.

Check out Emma Comfort, it's designed to be sag free, and comes with a 10 year guarantee.

How to fix mattress sag

Sagging of mattresses is a common thing as most mattresses are prone to wear and tear. If you have a sagging mattress, life can be pretty frustrating. You can end up having a sleepless night or wake up with a stiff spine and a sore back. Hence, if you are looking for ways to fix a sunken mattress, we have your back. So, here are some ways to fix mattress sag.

Rotating the mattress

If you want the lifespan of your mattress to last longer and prevent it from sagging, rotate your mattress. By rotating the mattress, you can avoid sleeping in a particular area all the time. Mattresses are made of foam material that can soften with time. As a result, when the mattress is under continuous pressure from our body, it begins to sag.

Also, sagging occurs mainly in parts that support our shoulders and hips since pressure is more in this area. Hence, by rotating the mattress from time to time, you can avoid more pressure in those areas that are already beginning to sag.

Using a mattress topper

One of the best methods to fix a sagging mattress is by using a mattress topper. Mattress topper, as the name suggests, is spread over the mattress to ensure comfort while sleeping.

There are varieties of mattress toppers available on the market. The thickness of the mattress topper will vary between two to five inches. Besides, mattress toppers are also made of different materials such as feathers, latex, wool, foam, etc. Thus, you can choose a mattress topper depending on how bad your mattress is sagging.

Support the mattress with plywood

Another cost-effective method of fixing a sagging mattress is to use a thin sheet of plywood to support the sagging mattress. For example, if you have a box spring, place the plywood between the box spring and your mattress. Also, make sure that the plywood is the same size as your bed.

However, adding plywood to fix the sagging mattress cannot be a permanent solution as it can prevent airflow in your mattress.

How to fix a sagging pillow top mattress 

Most of the pillow-top mattresses are not meant to be flipped. As a result, one of the easiest ways to fix a sagging pillow top mattress is by rotating the mattress. When you rotate your mattress, the heavier body parts will not always sleep in the same area.

In addition, you can also add thin plywood between the box spring and your mattress to support the foundation of your mattress.

How to get a dent out of pillow top mattress

You can add a mattress topper to reduce even out the weight so the dent doesn't increase in size and has time to bounce back to normal. You can add a thick wood between the dented mattress and box spring to make the mattress firmer if this doesn't work.

How to fix a mattress that sinks in the middle?

Most mattresses sink in the middle because there is more pressure in our hip area while sleeping. One of the best methods to fix a mattress that sinks in the middle is using a mattress helper.

Mattress helpers can restore the shape of the sunken mattress as it is made of convoluted polyfoam. You can place the mattress helper in the middle of the mattress that is sunken. Another temporary solution is to put a pillow or comforter underneath the sunken mattress to prop up the area. 

How to fix mattress springs

Mattress springs are not manufactured to last for 30 years. As a result, your mattress springs will eventually start sagging with age. However, you can add a few more years to your mattress springs by flipping the mattress from time to time.

When you flip your mattress, the area where you place your weight is redistributed. Also, you can avoid getting poked by a broken spring when you flip and change the sides of the mattress. 

How to fix mattress indentation

Here is a step-by-step guide to fix mattress indentation at home.

  1. Firstly, vacuum your mattress regularly to prevent indentation in your mattress. When you vacuum your mattress, it can smoothen the bumps and lumps in the mattress.
  2. Secondly, place extra pillows on the dented area of the mattress to restore its shape. By placing the pillows underneath the mattress, you can temporarily fix mattress indentation and sleep more comfortably.
  3. Finally, lie down and see if the mattress is comfortable to sleep on. You can make necessary changes by adjusting the pillows.

Best mattress topper for a sagging mattress

There are plenty of mattress toppers brands available. Many companies make mattress toppers using different materials and in various styles and sizes. However, one of the best mattress toppers is the Emma flip topper.

Emma flip topper

The Emma flip topper is made of Ergonomic Airgocell foam. It is the best mattress topper for sagging as it provides extra comfort and ensures a pleasant environment while sleeping.

Also, the Emma flip topper has a reversible two-sided mattress topper; one has a firmer side, and the other is softer. Thus, you can flip and sleep on any side, depending on your preference. In addition, the Emma flip mattress topper also comes with a cover that is both washable and breathable.