Top Five Memory Foam Mattresses For 2021

Ben Slater

In this article

Do you like the idea of sinking into a memory foam mattress, but worry that it will restrict your movement or feel too warm to lie on? If so, you've come to the right place. We've rounded up the top five memory foam mattresses, helping you to pick one that will help you get a great night's sleep with none of the compromises.

We've delved through the data from our independent and rigorous mattress tests to bring you our pick of top rated and most recently tested mattresses containing memory foam. We've also highlighted an expensive Don't Buy you should avoid if you're looking for a supportive mattress that will stand the test of time.

Time and time again, our results have conclusively proven that you don't need to spend a fortune to get a great mattress. You may be surprised how little a good night's sleep can cost when you scroll down to see our memory foam mattress recommendations. Or, if you're looking for a pocket sprung or latex mattress, or maybe just an ordinary foam one, take a look at our full list of mattress reviews to find the best option for you.

Only logged-in Which? members can view our recommendations in the table below. If you're not yet a member, join Which? to get instant access to our table and all of our online reviews.

Top five memory foam mattresses

81%

£978.00

Reviewed Dec 2019

As far as we’re concerned, this pocket sprung and memory foam hybrid is the best mattress money can buy right now. It provides good support whatever position you sleep in; it’s excellent at preventing the transfer of movement from one side of the bed to the other; and you can sleep safe in the knowledge that it will stand the test of time without sagging, softening or becoming less supportive.

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77%

£179.00

Reviewed Oct 2020

This simple memory foam mattress is affordable and a great Best Buy option if you usually sleep on your front or your back. It has a 7.5cm foam core and another 10cm layer of viscos foam on top. This top layer of memory foam will envelope your body, while this will help stop the transfer of movement across the bed (great news for your bed fellow) it does make it harder to turn over on.

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76%

£535.00

Reviewed Jun 2020

If you’re after a good night’s sleep, this mattress will give your spine excellent support if you sleep on your back and good support if you prefer to snooze on your front or side. It won’t sag over time, either. This great mattress scores highly across the board.

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72%

£444.00

Reviewed Jun 2018

You'll get exceptional support from this mattress if you tend to sleep on your back, although the support for side-sleepers is good, too. In addition to being very long-lasting, this mattress is also well-suited to light sleepers because it's really good at preventing movement from transferring from one side of the bed to the other. That stability has a slight downside, though - this mattress restricts your movement a bit, so it requires a little more effort to turn over on this mattress.

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70%

£159.00

Reviewed Mar 2020

This is a very cheap mattress, especially for one made of memory foam. It's also very light and thin (it's just 15cm deep) but it still impressed in most of our tests and is a great value option. It offers good support if you sleep on your back or lying on your front, and it won’t sag even after years of use. It also comes with a 100 day trial period so you can exchange it for another one if you’re unhappy with it.

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Table last updated on November 2020.

A memory foam mattress to avoid

50%

£1290.00

Reviewed Jun 2016

This mattress has some good points, such as decent support for side sleepers and the support doesn't deteriorate over time, but its good points are outweighed by its flaws. Many people will get poor body support, and the mattress loses some of its height as time goes on and it's not very breathable. If you sleep on your back the support is terrible.

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Which? members can log in to view all our recommendations in the table above. If you're not yet a member, join Which? to get instant access to our table and all of our online reviews.

Which? mattress reviews

All our mattress reviews are based on extremely rigorous and independent testing, so you can rest assured that our results will help you find the very best mattress for you.

Whether you're big or small, and sleep on your back or your side, we test every mattress to see how well it will support your spine. If you sleep on your back, a great mattress will keep your spine in the same shape as when standing; if you sleep on your side, your mattress should keep your spine in a parallel position to the mattress. That's what we look for when we test body support.

To make sure the support doesn't deteriorate with time, we perform all the tests again once we have simulated eight to ten years of use in our durability tests.

It's not just about support and durability, though. We also measure how breathable a mattress is, how easy it is to turn over on, and how stable it is. So, whether you're a sweaty sleeper, or a light sleeper who's sick of being disturbed by their partner, we've tested something that will suit you.

Updated: November 2020