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How do mattresses become Which? endorsed?


When you're looking for a new mattress, the central aspect you want it to deliver on is how well it can support you. With this, you'll be able to get a good night's sleep! Which? considers how well the mattress supports you back in the sleeping position that you usually sleep in, the mattress's stability, breathability and whether the bed restricts easy movements. Therefore, this looks at the edge support, temperature regulation and pressure relief of every mattress they test. Scoring the mattress on all these performance parameters makes up 55% of the mattress's total score.


The critical question that Which? as is whether the mattress is designed to stand the test of time. A quality mattress is designed to last at least 7 years, but Which? take it a step further and use technology to assess how a bed performs under a 10-year simulation. If they're in a similar condition to their original form, they will have passed the durability test. Overall, this accounts for 40% of the test score.

Ease of use

Lastly, for the remaining 5% of the mattress score, Which? explore how easy it is to look after the mattress. We should regularly rotate our mattresses to keep them in good condition. For double-sided mattresses, we should also flip them often. To do this, you want the bed to have handles and be lighter. Therefore, Which? accounts this into their scoring, albeit at a much less significant level than other components.

What types of mattresses are endorsed by Which?

Pocket sprung mattresses

There's no doubt that a traditional pocket sprung mattress is one of the most popular types of sleeping solution. Pocket springs move individually and are designed to move to the contours of your body, so you can receive total body support with even weight distribution. Therefore, it's no wonder that such a variety of pocket sprung mattresses have been endorsed by Which?. Check out brands such as Silentnight, Relyon and SleepSoul, who have all been approved by Which? for their unparalleled traditional pocket sprung mattresses. Silentnight's Eco Comfort 1200 is the perfect mattress with pocket springs for anyone looking for a sleeping solution with an environmentally-friendly aspect. This is because its fillings are entirely comprised of recycled plastic bottles.

Memory foam mattresses

Next on the list of popular options is the memory foam mattress, offering supreme comfort and support. Memory foam moulds to your body as you sleep due to the millions of tiny holes in memory foam mattresses. They seep out air when pressure is applied to conform to your body shape. Pressure-relieving memory foam ensures your spine is aligned correctly when sleeping on your side. You can keep the mattress fresh as many incorporate a removable and washable cover. The Emma Original mattress was endorsed by Which? Best Buy reinforces the comfort and popularity of this memory foam mattress offers. Because other 'bed in a box' mattress brands haven't been endorsed by Which?, the Nectar memory foam mattress offers a 365-night trial, so you can decipher whether that's the option for you. You can rely on Which?'s Best Buy endorsements to find the best memory foam mattress.

Latex mattresses

A premium mattress, latex is an open-cell foam that feels similar to memory foam mattresses yet combats the issues usually associated with it. For example, a latex mattress uses natural materials to create a pressure-relieving foam with bounce. In addition, latex proves to be a breathable mattress compared to memory foam's strong heat retention properties. You can enjoy a sleeping environment with that temperature-regulating component. Also known for its incredible durability, you can rely on a latex mattress to last for 10 or more years, which is likely why we stock so many Which? Best Buy-approved latex mattresses. To discover some of the best mattresses using latex, browse Dunlopillo's ranges.

Hybrid mattresses

Need help deciding what mattress is best for you? A hybrid mattress is worth considering, and several have been endorsed by Which? Best Buy. A hybrid mattress allows you to benefit from two types of matress: memory foam, pocket sprung, open coil, latex or gel foam. Amalgamating two types of mattresses together make for a much more affordable foam mattress, appropriate for many kinds of sleeping style.

Which support tensions are Which? Best Buy endorsed?

Everyone is suited to different mattress firmness. Which? tests an extensive range of support tensions and have endorsed a variety. There's a Which? Best Buy-approved mattresses for every kind of sleeper. Including a medium (softer) mattress for side sleepers, a medium firm mattress firmness for people who sleep in various sleeping positions, and firm mattress tensions for preferred back or stomach sleepers. Which? has also endorsed several orthopaedic mattress options for those looking for a mattress to help combat back or joint pain.

Which mattress sizes are included in Which? endorsements?

Whilst Which? test their mattresses in double size (135 x 190cm). All sizes corresponding to a bed that has been endorsed will also be. This includes a small single (75 x 190cm), single (90 x 190cm), small double (120 x 190cm), double mattress (135 x 190cm), king size mattress (150 x 200cm) and super king size (180 x 200cm). Don't worry; the best mattress is available in single, double, king, super and more!

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