How Often Should You Buy A New Mattress?

I’ve been using my mattress for seven years, and it’s about time I should replace it. Why? 

Because it has started sagging, and even worse, it is a constant source of backache for me.

It has become something that traps me every night, and I stay stuck in that uncomfortable situation for hours, which ultimately increases my back pain and disturbs my sleep as well.

So are you going through similar issues? Is your mattress all saggy and loose? Does your bed feel like a thin sheet of paper? In all these cases, replacing the mattress is the only option. After all, how much can you play with your health?

As mentioned in a study by Sleep National Foundation, a mattress should be replaced in 8-10 years, and all the high-end mattresses would easily last for this time. Nonetheless, you may need to replace your mattress earlier based on your weight, age, health, the making of the mattress and similar factors.

Here I have come with an in-depth study about when you should change your mattress along with everything you need to consider before investing in a new one:

why does a mattress wear down
Credit: Shutterstock

There are a number of things responsible for accelerating the decline of your mattress, including improper care, weight, and more. Let’s dig into some of the most common reasons why a mattress dips:

Lack of Maintenance

The lifespan of your mattress relies upon the care it is given; therefore, I always recommend using a mattress encasement or protector. A mattress protector ensures to keep allergens like dust mites, bed bugs, and dead skin cells at bay.

Needless to say, all these little damages significantly contribute to voiding the warranty of the mattress while decreasing its value. You might be thinking of it as an additional expense, but I assure you that a mattress protector is something inexpensive as well as comfortable. 

Mattress protectors are usually made using noise-free fabrics, and they fit well merely like a bedsheet. They can notably extend your mattress’s lifespan, so it is safe to say that they’re worth the price.

Apart from that, I take some other precautions as well like I vacuum my sleeping space with a hose nozzle, I am quite particular about not bringing food to my bed, and I make sure to clean every stain with a mild stain remover.

Density, Thickness & Weight

I reckon that a mattress is there to support your body weight. All these mattresses by high-end brands have the ability to support it, but a mattress with less than 10-inch thickness can barely stand heavy weights. For instance, if two people share the same mattress, it can start sagging quicker.

Generally, it is said that a standard mattress can withstand weight up to 150 pounds easily as long as you don’t roll around from one corner to the other.

In all these years, I’ve seen several mattress companies and each of them is different than the other in terms of material quality, level of firmness, and manufacturing.

Most of the companies usually offer three levels of firmness, plush, medium and hard. In case you’re shopping online, make sure to check the product reviews as you don’t get to try the firmness level, so it is always a better idea to consider what others think of it.

Besides, I always take help from the firmness scale most companies use to advertise their mattress’s firmness level. It is a scale that goes from one to ten, starting from very soft and plush to extremely hard and firm. 

While visiting the markets, I’ve seen most mattresses in a range of 3-8 as a mattress that is too firm or too soft wouldn’t be comfortable enough to sleep. For anyone concerned about heavy body weight, a firm mattress would do the talking.

Inappropriate Foundation

Lastly, you cannot simply neglect the foundation of the mattress you’re investing in. The foundation of the mattress primarily decides about its lifespan.

Let’s take an example of a foam mattress; it is not very compatible with a box spring as it alters the comfort level of the mattress and plays a vital role in eating away its life.

That being so, always ensure to use a platform or mattress foundation bed frame with closely joined slates for a foam bed. Similarly, you can use single piece wood under the mattress or put it directly on the floor as well, but if you require a good airflow, it wouldn’t be the best idea.

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General Guidelines

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As it is said that an average lifespan of a mattress is 8-10 years, it can vary depending on the brand and making of the mattress. Mattresses manufactured using high-quality materials tend to last for a long time; thus, the type of mattress you get makes a huge difference.

Latex Mattress

Latex foam mattresses are made using two kinds of materials, synthetic and natural. Usually, latex foam mattresses bring along warranties of more than 20 years, says the Sleep Help Institute.

Memory Foam

These mattresses are available in various densities and materials, and their life efficiency varies accordingly.

The right memory foam mattress made using quality materials can last up to 15 years if appropriately taken care of along with frequent flipping.


It comes with a coil support system, which helps in distributing the body weight equally. They can support you for ten years and more depending on how you maintain them.

My mother has an innerspring mattress for almost ten years now, and it’s still going well. The secret to its longevity is, of course, how she cares for it and rotates it every now and then. Also, she’s very conscious about the wear and tear.

Water Mattress

There are two kinds of waterbeds available, one with the free-flowing water and the other with the wave-less flow.

Though waterbeds have been out of trend for a long time, they’re definitely making a come back with improved quality and support. They can last from 5-10 years, again depending on how well they’re taken care of.

Pillow-top Mattress

The pillow-top mattress is another plushy thing on the block as it brings along additional layers of foam providing extra cushioning. Yet, the disturbing thing I found about the pillow-top mattress is that it wears out pretty quickly; thus, it doesn’t last for more than five years.

Hybrid Mattress

When hearing the word hybrid, what is the first thing that comes to your mind? A mixture of two, isn’t it? You got that right! A hybrid mattress is a combination of innerspring and memory foam mattress. They contain the comfort of both, layers of foam and coil support system.

As comfortable as they are, a little downside is that they don’t last very long. They have an average lifespan of up to six years, and sadly, you’ll have to replace your mattress after that.

When to Replace the Mattress?


Confused about when to replace the mattress? Is it something that you need an accurate answer for? Well, there’s no second opinion about the fact that your comfort remains the first thing when you think about purchasing a new mattress.

After a few years of use, a mattress not just starts wearing out, but develops lumps, dips, and starts losing its shape. Saggy and lumpy mattress can indeed snatch away your good night’s sleep.

It goes without saying that not getting proper sleep can contribute to many health issues, including:

  • Body aches
  • Cardiac and kidney diseases
  • Anxiety-related disorders

Before getting into the abyss of such health issues, it is a safe choice to get rid of that lumpy mattress. Read on to know about the signs that your mattress requires replacement:

Body Aches and Muscle Stiffness

When my mattress started sagging, the first thing I noticed was an increase in the backache. I had to go through the worst backache, and it was precisely why I couldn’t sleep well or work like I used to. It was then I realised that the life of my mattress is finished.

If you go through body aches and feel like you have sore muscles after waking up, it’s about time you consider changing that mattress. According to a 2019 study, a new mattress can significantly improve the muscles’ stiffness and enhance the quality of sleep.


Mattress infestations are common these days, and they’re a major reason behind allergies. Mattresses have the highest concentration of allergens, as explained in a 2015 research report.

Even though vacuuming the mattress regularly can help, if you’re confident about having a mattress infestation, it is a wise decision to change it once and for all.

Wear and Tear

I remember when I thought about replacing my mattress, one significant reason was the wear and tear. I observed various lumps, and deep down, I knew that the reason behind my backache was my saggy and lumpy mattress.

So, if you happen to see any lumps or dips in your mattress, do not wait for it to hurt your body and consider replacing it right away.

Mattress Noises

When a mattress starts getting old, you often get to hear noises of springs. Remember that when coils start making all these annoying sounds, it clearly indicates that they’re damaged and are no longer able to provide you with the support you need.

It’s a scientific fact that a person gets to spend a third of his life sleeping; hence, it wouldn’t be wrong to say that your mattress needs to be top-notch. Even though it appears to be quite tempting to live with an old mattress, it is something that can negatively affect your health in many ways.

All in all, bringing in a new mattress has ample of benefits. Yet, if you have persistent muscle stiffness and body aches, it is safe to consult a physician first.

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