Checking the Firmness of a Mattress

How to Make Your Mattress Firmer?

A broken-down or sagging mattress can keep you up at night because you can’t find a comfortable sleeping position. This can leave you low on energy and in really bad shape come morning. 

However, a common problem that people encounter with a new mattress is that it becomes too soft or becomes softer after a few months of usage. In such cases, knowing how to make mattress firmer should be a priority.

A Woman Checking the Firmness of a Mattress

Importance of Thickness and Firmness of a Mattress

When shopping for memory foam, foam, latex foam, or innerspring mattresses, the thickness and firmness matter. You should choose a mattress that is specific to your sleep position or based on your expectations. For example, stomach sleepers should invest in a soft mattress, while side sleepers should find medium soft mattresses more comfortable for their shoulders and hips. For back sleepers, a firmer mattress can give your weight enough support to minimize the aches and pain in the morning.

Tips on How to Make a Mattress Firmer 

Mattresses can sag or lose their firmness over time, and if buying a new one may not be in your immediate future, you will need to know how to fix a sagging mattress. Let’s find a way to make your bed firm enough to support your body. The steps mentioned below may help you sleep better at night until you get a replacement mattress.

Use Plywood Boards

For mattresses that are too soft, slipping plywood boards between the mattress and the bed frame or the box spring may help prevent the mattress from sagging or sinking too much. This may give your mattress added support, helping you sleep better at night.

A stack of plywood boards

Adjust Room Temperature

It is possible that the type of mattress that you have can be affected by the temperature in your room. For example, if you have a 100% memory foam mattress, it tends to become softer when your room is warm. Adjusting the thermostat can add firmness to a mattress.

Adjusting room temperature with electronic thermostat at home

Keep Bedding Flat and Smooth

Another tip to keep your mattress firm is to use a sheet that is the same size as that of your mattress. Pull tight from the top to the bottom, and from side to side, to create pressure on the mattress. This will help firm it up a little.

Install a Mattress Topper

If your soft mattress is preventing you from getting a great night’s sleep, know how to make a soft mattress hard by adding a mattress topper. There are different types of mattress toppers that you can get such as hard foam or memory foam. A memory foam mattress topper has a different hardness to it which means that you’ll be able to find long lasting firmness for your bed.

 A polyurethane or latex topper can also work. Pads tend to be thinner and are usually filled with polyester or other materials that may not give you the firmness that you seek. Instead of a pad, use plywood under a mattress topper to get the desired stiffness. 

Mattress topper laid on top of the bed

Replace Damaged or Worn Layers

There are some mattresses that are made from several layers held in place by a mattress cover. What’s great about having this type of mattress is that you will be able to replace any layer that is already worn or damaged instead of having to buy a brand new mattress. All that you have to do is to open the mattress and remove the damaged layer to be replaced afterward.

Change the Box Spring

The coils of the box spring of your mattress can loose its spring due to wear and tear. If you find that your mattress has lost its firmness, it may be that the box spring needs to be replaced. Since you are getting a new box spring, not only will this add to the firmness of your bed, but it will also add height to it too. For a detailed analysis check out – does your memory foam mattress need a box spring?

Replace the Plywood

Talk to your mattress manufacturers to see if they can recommend a solution to your soft mattress before you remove the plywood. If they give you the go-ahead, choose plywood that matches your mattress. See to it that the plywood is not treated and that the edges and sides have been sanded before you install it in your bed.

Place Bed on the Floor

Another tip on making your mattress firmer is to put it on the floor. This may be your last resort especially when the steps mentioned above haven’t helped. However, before you place your mattress on the floor, you need to keep in mind that you will be exposed to dust, dirt, and bugs that may get to your bed. If you think that this will help firm up your mattress and the rest doesnt bother you, plop yourself on the floor and enjoy a good nights sleep.

Flip Your Mattress

There are mattresses that can be used on both sides which means that flipping it over can help. Flipping your mattress will help even out the wear and tear on your mattress so that it will remain firm. Do this every 6 months or so depending on how often your bed is used.

What Are the Benefits of a Firm Bed?

The right mattress makes all the difference in the world. It can add quality to your sleep and help you feel rested through the day. Now that you know how to firm a soft mattress, you should know what benefits it brings to your health. 

Improved Alignment 

When you sleep on a firm mattress, your spinal cord tends to straighten thus, improving your posture. Many people sleep on a firm mattress topper like plywood to ease their back pain. A firmer mattress offers you the adequate support your joints and spinal cord needs, allowing you a deeper sleep every time. Hence, the firmer the mattress, the better for you.

Check out out range of nectar mattresses meant for relieving back pain

Sleeping Position 

For back sleepers, a firm mattress is ideal as it gives the necessary support needed throughout the night. While for side sleepers, sleeping with a pillow would give them all the comfort they seek. 

Deep Sleep 

The body rests better on a firm or hard surface. When sleeping on a firm mattress, there is less pressure on the muscles as the weight gets evenly distributed on your bones. This increases the quality of sleep you can achieve every night. 

A young woman sleeping on the floor in deep sleep

Maintaining the Mattress 

As the mattress isn’t sagging or bulging from anywhere, maintaining it becomes easy. The maintenance cost for a firmer mattress is considerably low. You will end up saving more knowing how to make a saggin mattress firmer. 

Summing It up

Most people prefer a firm mattress and rightly so. There are many ways to make your mattress firmer. Using a plywood board between the mattress and the bed frame can provide the extra firmness you need. Knowing how to make your mattress more comfortable can save you that extra penny. Ditch your uncomfortable mattress for Nectar’s memory foam mattress with a lifetime warranty. To know more, visit Nectarsleep.


Do firm mattress toppers work?

Yes, they work very well for firming up a sagging mattress. A foam or memory foam topper can give you a firmer mattress.  

Does everyone need a firm mattress?

Not necessarily. Although it has great health benefits, sleeping on a firm mattress isn’t recommended for everyone. Some people sleep on a firm mattress because of back pain.

Can a too-soft mattress cause back pain?

Yes. Soft mattresses tend to make your spine curvy and misaligned. To find your spinal alignment, sleeping on a firm mattress will help reduce back and joint pains. 

Do side sleepers need a firm or a soft mattress?

Side sleepers can sleep well on a firm mattress. They just need to sleep with a soft pillow on the side to give them the comfort they are looking for. 

Is it better to sleep on a hard or soft mattress?

To maintain the posture and to reduce body pains, you must sleep on a firm mattress. This evenly distributes the body weight on the bones, not muscles, giving you a deep sleep every time.