Top five memory foam mattresses for 2021

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.

Table last checked: April 2021.

A memory foam mattress to avoid

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: April 2021