How to Fix Mattress Indentation – 5 Easy Solutions

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Mattresses do not last for a lifetime, and most of them aren’t very durable, so expect some challenges when you buy one. The number one issue is indentation. Once you face this common problem, you should have an idea of how to fix mattress indentation.

Even though mattresses can last for more than 10 years, most of them are only comfortable for the first few months. While some become lumpy, others even develop divots after several years. If you’ve ever slept on a lumpy mattress, then you know how uncomfortable it can be.

Remember that mattress divots aren’t always easy to fix. Nevertheless, you should try to get it rectified with these tips and tricks. They work for most mattresses.

How to Fix Mattress Indentation

What Is Mattress Indentation?

First, let’s shed some light on mattress indentation. Simply put, it’s the compression of the foam. Although this is different from body impressions which are caused by pressure points, these terms are often confused for one another.

Foam is a material that tends to compress by a few inches when you’re lying on it for a couple of hours. This is especially true if you are sleeping on your side. It will cause the mattress to form a dent at the same spot every night and you’ll wake up with a sore back.

There are 2 major causes of mattress dents: breakdown and natural compression of memory foam or other components. That leads to their splitting, which causes the mattress indentation over time. Read on to learn how to fix this problem yourself.

How to Fix Mattress Indentation

Method 1: How to Fix Mattress Indentation Using Pillows

Do you have spare pillows? Use them to reinforce your sagging mattress in case of deep indentations. They can lift and level the surface while giving additional support.

The catch is that the pillows are going to flatten after a few months of regular use. While this simple and cheap fix is a temporary solution, it will quickly provide you with short-term comfort.

Step 1: Pinpoint the Sagging Area (Indentation)

Target the spots that need to be filled in. You may need two or more pillows, depending on how deep the dent is. Remember that your posture must remain neutral while you’re sleeping, so avoid elevating your beck or neck too much. Poor sleeping posture causes pain and discomfort.

Step 2: Place Pillows Underneath

Once you have identified the sagging area, position one or more body pillows under the indentation (below your mattress). Ask someone for help. While one person lifts the mattress, the other one should slide the pillow(s) on the base of the bed. This will keep the indentation from appearing on the surface and help you sleep better at night.

Step 3: Put Some Pillows over the Indentation

Alternatively, you can place the body or flat pillows over the affected area. They are supposed to lessen the sagging by filling in the gap. This is a good way to ignore the mattress indentations, but it’s not a permanent solution.

Method 2: Fix Indentations by Vacuuming Your Mattress

Many people use a vacuum on their mattresses to keep them clean. Vacuuming is a great way to prolong their lifespan. Aside from that, it can help restore the smoothness of your mattress and redistribute its filling.

By vacuuming your sagging mattress, you can even out and smooth out any bumps or lumps in the filling. When those stuffing clumps form over time, they give rise to indentations. A vacuum cleaner can break them down, thereby restoring the smooth surface.

Here’s how to clean your mattress and distribute its stuffing properly with a vacuum cleaner. Kill two birds with one stone!

Step 1: Remove protective covers, sheets, and pillowcases. Wash all the bedding after stripping your bed.

Step 2: Use a vacuum on the bare mattress so that every inch is cleaned. Vacuum the sides and top of the mattress. The upholstery attachment will help you get behind your mattress and reach every corner.

Step 3: Consider spotting clean your mattress with a stain remover as needed. If you have a memory foam mattress, skip this step since it isn’t intended to get wet.

Step 4: The process should be repeated for the best results. Flip the mattress over and vacuum again.

NOTE: This solution only works for shallow dents. Nevertheless, you should vacuum your mattress on a regular basis. That will extend its life and ensure that the bumps don’t reoccur.

Method 3: Rotate Your Mattress From Time to Time

Rotate your mattress every three months or so to offset some indents and sags. They occur because the upper body carries the majority of your weight. This way your mattress is going to wear uniformly.

Step 1: Turn your mattress around 180 degrees. That will cause your feet to be where your head was.

Step 2: Repeat the process after 3-4 months. Actually, it’s best to do it every 30 days to prevent indentations.

Step 3: Flip now and then. Please note that rotation is different from flipping, which can damage single-sided mattresses. That said, make sure your mattress is double sided and designed to be flipped.

While this measure can help with the sagging mattress if you have not rotated it for a while, it is just a temporary solution. The same indentation will eventually occur again when rotating the mattress back after some time. That’s why you should combine it with other methods.

Method 4: Use a Mattress Topper or Helper to Fix Indentations

Mattress Helpers

Unlike the toppers, the mattress helper goes underneath to reduce or fix the indentation. So think of it as under mattress support. In addition to lifting sagging mattresses toward their original shape, mattress helpers can also run their length.

In fact, this ‘block pad’ is placed between the bed frame and the mattress. That can make your bed base more stable. It’s cheaper than purchasing a topper, which makes it suitable for those looking for an economical solution that can serve them for years to come.

Mattress Toppers

As their name implies, these toppers are meant to go on top of a mattress. They can level out the mattress dents while improving comfort and providing extra support.

That makes them a popular solution for indentations. Here are some tips on how to choose and use mattress toppers:

Tip 1: Most mattress toppers are made of latex or memory foam. We recommend buying the latter one.

Tip 2: Always go for firm mattress toppers. Unlike their soft counterparts, they don’t line up into the saggy spots of mattresses.

Tip 3: Mattress toppers are usually 1 to 4 inches thick. A 3” foam topper is quite enough for most indentations. This additional layer will be able to redistribute your weight.

Method 5: Strengthen a Sagging Bed Frame

Even if the mattress is perfectly fine, dents may still occur if it sits on a sagging base. So you may need to strengthen your bed frame if it lets the mattress down.

This problem often happens in slat and flimsy frames because they don’t support mattresses well. Luckily, it is not difficult to solve. Just follow these easy steps:

Step 1: Check the bed frame for sagging and dents. This is the first thing you need to check out before doing anything else.

Step 2: If your frame has slotted wood planks, make sure they are aligned properly to prevent large gaps that cause mattress indentations. Poor-quality planks that bend easily should be replaced.

Step 3: Another great way to reinforce the base of your bed and redistribute the load is to add one or two layers (1.5-2 inches thick) of plywood under your mattress. Make sure the sheets match the size of your bed frame.

FAQs About How to Fix Mattress Indentation

How to Get Body Impressions Out of My Mattress?

Simply flip your mattress over to remove body impressions. This works for 2-sided mattresses that have a pillow top on either side. For the one-sided mattresses, which are more common, eliminate body impressions by rotating the foot to the head area and fluffing the pillow top manually.

How Can You Fix Your Memory Foam Mattress Indentation?

There are a lot of different solutions and tips on how to repair sagging or dipping memory foam mattresses. Try to fix indentation by rotating and flipping your mattress. If it didn’t work, add a mattress topper or a mattress helper. You should also consider improving the bed foundation.


Now that you have a better idea of how to fix mattress indentation and what it is, you will know what to do if you end up with this problem. Don’t hire an expert. Try to rectify your mattress on your own with the help of this step-by-step guide.

How To Fix A Squeaky Bed – 9 Simple Tips To Follow

How to Stop Bed From Sliding on Wood Floor – 5 Easy Ways

How to Fix a Broken Bed Slat – For Wooden or Metal Slats


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