How Long Does A Mattress Last?

Changing a mattress is usually something that you never have to think about but did you know that an old mattress can drastically affect your sleep? Having a mattress that’s over 8 years old means it’s likely past its best before date and needs replacing. If this is the case then a brand-new mattress is in order.

In this article we will cover:

Here at Custom Size Beds, we offer a variety of comfy mattresses ranging from standard size domestic mattresses to bespoke size antique bed mattresses. We even offer great mattresses for your caravan!

What is the average lifespan of a mattress?

The average lifespan of a mattress ranges between 5-8 years but it’s important to note that the weight of a person, the construction of the mattress as well as other factors play a big role in terms of the lifespan.

Even though mattresses last between 5 – 8 years, this doesn’t mean they simply disintegrate overnight and for this reason, many people incorrectly continue using a mattress which is way past its best. Because wear and tear is a slow, gradual process, a lot of people miss the signs that indicate your mattress has reached its best before date. In turn, this can impact the sleepers’ health and quality of sleep.

Taking care of your mattress:

  • There are some ways you can increase the lifespan of your mattress, one of which is rotating your mattress regularly. Doing this can help evenly distribute wear and tear but we understand this may not always be possible with irregular shaped mattresses.
  • Having a suitable mattress that can support your body weight correctly is also something to consider. Having a mattress that can’t properly support your weight can result in aches and pains, as well as drastically decreasing the lifespan of your mattress. Our standard mattresses support up to 15 stone, whilst our upgraded firmer, more orthopaedic mattresses are better suited for those who weigh up to a maximum of 20 stone. However, sleepers who are over 20 stone should contact us to discuss their requirements.
  • Taking good care of your mattress and maintaining it correctly can help increase the lifespan of your mattress by reducing the chance of bedbugs and reducing the frequency of allergic reactions.
  • Consider contacting us for personalised advice on the best way to take care of your mattress from one of our experts.

At the end of the day, having a suitable high-quality mattress that’s designed just for you from day one is the best way to achieve a good night’s sleep that stands the test of long time. We care about how comfortable and durable our mattresses are, which is why we are proud to offer a 5-year warranty on all of our mattresses. So, why not take a look at our wide collection of mattresses today?

Why is it important to replace your mattress?

Replacing a mattress is crucial for your health, as an old mattress can harshly impact your quality of sleep. Having a bad night’s sleep can lead to a lot of issues both physically and mentally which is why your mattress should be replaced once it reaches the end of its lifespan.

Some potential indicators a mattress is reaching the end of its lifespan and needs replacing are:

  • Permanent deep indentations which will not rebound

  • Stains

  • Bed bugs

  • Poor sleep quality

  • You wake up feeling sore

  • Back pain (caused by lack of support)

  • Your allergies or asthma worsen during the night

Benefits of getting a new mattress:

  • With a new mattress, you will likely experience improved quality of sleep and more effective support which allows for deeper sleep to occur.

  • Another benefit of changing your mattress is that you will suffer less from dust and hay fever allergies as older mattresses can attract large amounts of dust and other particles.

  • Changing your mattress can also benefit your body as proper support allows for natural spine alignment. This is why it’s worth going for a high quality mattress as it allows for more natural sleep and fewer back pain issues.

What does Custom Size Beds offer?

We pride ourselves on our unparalleled focus on high-quality mattresses. Our bespoke mattresses come with a 5-year warranty so you spend more time sleeping and less time worrying.

We create mattresses to all different shapes and sizes whether that be round mattresses, sofa bed mattresses or even boat mattresses. Contact us today for personalised recommendations from one of our experts and get a mattress created just for you.

Remember: If you can draw it, we can make it!


  • How long do mattresses last?

    Between 5-8 years but can last up to 10 depending on the quality and other factors

  • How should I replace my mattress?

    As soon as your sleep quality is negatively affected. This can happen because of lumps in the mattress, a loss in support as well as many other reasons.

  • Why am I sleeping badly?

    Poor sleep quality can occur because of various reasons but having an old mattress can be a big issue. A lack of support can cause morning soreness and back pain which can be avoided with a fresh new mattress.

  • Can a mattress last 20 years?

    Technically yes, but would you enjoy sleeping on it? Probably not!! Even the best quality mattresses lose significant support levels of support each year and as a result should be replaced every 5 – 8 years.

  • How can I make my mattress last?

    Investing in a top-quality mattress is important and getting quality expert advice is a good first step. Contact one of our experts now for some personalised advice!


Knowing how long a mattress lasts is very important so you know exactly when to replace it. If you are long overdue for a replacement mattress then we have you covered at Custom Size Beds. We offer a wide variety of mattresses that can be cut to any size you desire.

Design your own mattress today with Custom Size Beds!

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Start by selecting the shape that shows the closest match to your requirements – you’ll be able to customise this later. If you can’t find your shape or need something entirely different, get in touch and we’ll be more than happy to help.

Step 1) Select the shape you wish to customise
Basic shapes
Shaped mattresses
You’ll select which side the shape is cut later
Split mattresses
You’ll select the position of the split later