How to Make a Mattress Firmer (6 Ways)

Last updated on March 18, 2024

Does your mattress feel too soft for your liking? This can pose a lot of issues in the long run. Here’s how to make a mattress firmer yourself. Read on!

Sleep is without a doubt one of the most important parts of our health, lives, and success. It is how we rest, recharge our batteries, and relax after a long day. Adults are supposed to get around 7 to 9 hours per night in order to be well-rested and ready to start their day. Unfortunately, many of us don’t sleep that well, for one reason or another. This could be due to too much caffeine, being too busy, or even something like insomnia.

In order to get the best sleep possible, you need a great bed and mattress. You want one that is comfortable, supportive, and cozy. While there are many different kinds of mattresses you can use, many people swear by ones that are firm. There are many benefits to sleeping on a firm mattress, which range from staying cool to promote better back health.

While you could of course go and buy one of the best firm mattress options to instantly get a high-quality and firm mattress, what if you just bought a new mattress last year and don’t want to get another? Well thankfully, there are actually some ways you can make your mattress firmer, and this article is going to take a look at a few of them.

What's Inside

Use a Wooden Board

wooden boards

One of the simplest, easiest and quickest ways to firm up nearly any mattress is to use a wooden board. By putting a piece of plywood between the mattress and box spring or platform, you can greatly increase the firmness of a mattress. This will give you a ton more support than simply having the bed sit on the platform by itself.

The size and thickness of the board can be changed up depending on your needs. This is also a great solution for couples with different preferences. It allows for one side of the bed to be firmed up, without affecting the other. This wooden board could also keep dust and other allergens under control in some circumstances.

Get a Mattress Topper

mattress topper

If putting a wooden board under your bed isn’t your style, you can also get a mattress topper. As you could imagine, this goes on top of your mattress instead of under it. They can be soft, medium, made of foam or yes, firm. They are normally quick, affordable, and can be purchased from a variety of different places.

These toppers are very supportive, while still being comfortable to sleep on. They come in a variety of different materials, and thicknesses. So be sure to try out a few and see what you prefer.

Upgrade Your Box Spring

box spring

In many cases, people have their mattresses sitting on a box spring. It is a supportive foundation for your mattress, and can often add some firmness to the bed in some situations. Over time, these box springs will wear out and potentially sag over time, which could be the reason why your bed feels a little bit too soft for your liking. The springs simply won’t offer as much support, which means a more sagged mattress.

This can be fixed by simply going out and buying a new box spring, or fixing yours if it’s possible. Oftentimes, getting a new box spring is fairly cheap and much easier than a whole new mattress. So if your mattress feels a little more soft than usual, don’t always assume it’s the fault of the mattress.

Adjust the Temperature in the Room


Another thing that can contribute to a softer mattress is warm temperatures. Many mattresses, especially many with memory foam, react to changes in temperature and can become very soft in a hot room. This is because they absorb the heat, which takes away from how firm they can be. On the other side of things, a cold or cooler room can make the mattresses much firmer.

As a result, if you keep your room a little cold, it can help to firm upmost mattresses a little bit. If you don’t want to keep the air or fan on in your home all the time, you could even just leave a window open overnight or for a little bit before getting into bed.

Rotate or Flip the Mattress


Another great way to deal with a soft mattress is to flip or rotate it. As you use your mattress, some soft spots will begin to materialize. These are the spots where you most often lay when you sleep. These spots can almost make you feel trapped in the bed and can make moving comfortably difficult.

Rotating or flipping your mattress every few months can stop these soft spots from getting worse, as all of your weight is distributed well. Of course, not all types of mattresses are meant to be flipped or rotated. Some may only be one side and should only be laid on in a certain way. Do some research on your specific mattress to make sure it can be rotated or flipped and still used.

Let the Mattress Dry

sun dry

Moisture from the air can often be absorbed into your mattress, which can lead it to become a lot softer. So if you live in a humid area of the world, there is a good chance your mattress is much softer than it should or is supposed to be. Also, things like condensation and even moisture from our bodies can contribute to In order to firm it up, you should let the mattress dry out.

This can be done by placing it out in the sun for a few hours and letting the moisture evaporate. The sun can also be effective at freshening up the mattress as it can kill bacteria, germs, mildew, and more. Of course, be sure to inspect the bed before you bring it back inside to make sure it isn’t dirty or there aren’t any bugs on it.

In conclusion, we hope that this blog post has been helpful in teaching you some great methods to make a mattress feel more firm. 

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