How Often Should You Replace Your Mattress?

Written by
Purple Staff
Last Updated
February 3, 2023
min read

How well you sleep has a tremendous effect on your overall health. That means that investing in a quality mattress is more than just a luxury – it's also good for your health! But how often should you get a new mattress if your current mattress can still deliver the kind of restful sleep you need to stay healthy and happy?

Here, we talk about the average mattress lifespan for each mattress type, along with some of the tell-tale signs that you should give up your old mattress.

Purple offers mattresses for all sleeping positions and body types. Purples Gelflex Grid is supports you. While providing the comfort you need. 

5 Obvious Signs You Need To Replace Your Mattress

woman with stiff back due to old mattress that needs to be replaced

According to Consumer Reports, there is no "set formula" for determining when you should give up your old mattress. But the general consensus is that mattresses should last between seven to 10 years.

However, if you notice any of these signs even before those seven to 10 years are up, you should seriously consider upgrading:

1. You Find Yourself Sinking Into Your Mattress

Depending on the type of mattress you're using, sagging can happen for a bunch of different reasons. If you're using an innerspring mattress, sagging could mean that the coils have degraded significantly. 

2. Your Mattress Is Causing You Pain

The longer you sleep on a sagging or uneven mattress, the more likely you are to end up stiff and sore the next morning. When coils give out or foam loses its shape, the mattress can no longer distribute your weight evenly and support your back in the right ways. 

3. Your Allergies Or Asthma Act Up In The Bedroom

A study published by Ohio State University found that an average used mattress hosts anywhere between 100,000 to 10 million dust mites that can trigger allergic reactions and worsen asthma symptoms. For this reason, you should be conscientious about cleaning and flipping your mattress every three months or so. This is also why you should replace your pillows and bedsheets regularly.

But when all the cleaning and flipping can't make your allergies go away, perhaps it's a sign that your mattress has reached the end of its life.

4. You Don’t Feel Well Rested The Next Day

When you're up against back pain and allergies, it's next to impossible to get a good night's rest. If your mattress is seriously messing with your sleep quality, then it's time to toss it out.

5. Your Mattress Stinks

Adults spend about a third of their time in bed. In that time, your mattresses collect everything from your dead skin cells to hair to pet dander to sweat to dirt that builds up on your feet. Mold, mildew, and fungi can also form on your mattress, especially if you live in a humid country. All that can cause your mattress to develop a funky smell.

When To Replace Your Mattress Based On Mattress Types

How often should you buy a new mattress? There’s no single correct answer, as different types of mattresses have different lifespans:

Memory Foam Mattress

Memory foam mattresses are called such because of their body-adaptive properties. Mid-range memory foam mattresses typically last six to eight years. High-quality ones can last up to 10 years with proper care.

Innerspring Mattress

This type of mattress utilizes a steel coil support system that distributes the sleeper's weight evenly across the top of the mattress. Innerspring mattresses typically last for seven to 10 years.

Hybrid Mattress

In most cases, a hybrid mattress will look like this: an innerspring system is sandwiched between a base foam layer and a top foam layer. Hybrid mattresses don't last quite as long as other types of mattresses – usually between six to eight years.

Latex Mattress

Latex mattresses are among the most durable mattresses on the market, lasting up to 15 years. Some have warranties that cover up to 25 years.

Additional Factors Influencing Mattress Lifespan

The factors that affect a mattress’ average lifespan include the material, the amount of care that goes into washing and maintenance, the weight of its users, and whether pets and kids frequently play on the mattress.


Innerspring mattresses are prone to sagging. Eventually, the coils can poke through and creak as well, making for an uncomfortable and noisy night's sleep. 

To find high-quality innerspring mattresses, look for ones with a lower coil gauge (thicker coils). To increase the life of your innerspring mattress, make sure to rotate it 180 degrees every three to six months. Some innerspring mattresses can also be flipped. 

Memory foam mattresses conform to the curves of their owners, and unfortunately, this can make them prone to retaining body impressions after prolonged use. To prevent this, seek out high-density foam and rotate your mattress by 180 degrees every three to six months. 

Latex mattresses can be made from either natural or synthetic latex foam. Because they're designed to be very dense, they don't sag or dent as early as the other two types. However, some users complain that latex is a little too hard for their liking. To preserve a latex mattress, rotate it once or twice a year. 

The Purple Grid is made out of our patented technology Hyper-Elastic Polymer.  The Grid instantly adapts to your body for the comfort and support you need. Purple offers up to a 10 year warranty. 

Maintenance And Care

Rotating your mattress every few months isn't the only way to take care of it. Make sure to clean your mattress every six months. 

User Profile

Heavier sleepers can hasten mattress sagging. Additionally, a single person will wear out a mattress much slower than a couple or a family sharing one mattress. Hot sleepers could also ruin their mattresses faster, given that they will sweat more. 

Pets And Kids

Kids and animals may jump on the bed, bring in all sorts of dirt and debris, or even wet the bed by accident.

FAQs About Replacing Your Mattress

How often should a mattress be replaced?

You should replace your mattress every ten years or when it begins to demonstrate signs of deterioration. However, how often a mattress should be replaced might vary depending on what kind you have. 

For example, if you have an innerspring mattress, it’ll likely last you up to ten years. On the other hand, if you have a latex mattress, it can last up to 15 years.

Should I replace my 20-year-old mattress?

You should replace your mattress if its preventing you from getting optimal comfort and support. Get a mattress that helps you sleep so you can be at your best.

Does a new mattress really make a difference?

Everyone is unique in their sleep preferences and needs. Getting a new mattress can make all the difference if your current mattress is preventing you from sleeping.