Premium Hybrid Mattress
If you want a good night’s sleep, deciding which type of mattress to buy is only part of the story.
Whether you prefer a pocket sprung or memory foam mattress, our tests have found big differences between the best and worst of each mattress type.
Make the wrong choice and you risk being lumbered with a needlessly expensive mattress that's uncomfortable, unsupportive and unable to stand the test of time without sagging and softening.
We've explained everything you need to know below to ensure you get the right mattress.
Watch our video to help you pick the perfect mattress for your sleeping position, body shape and bedroom.
Contrary to popular belief, a mattress doesn’t have to be hard to be good for you. Firmness comes down to personal preference, as long as it does a good job of supporting your body.
Don't assume that what's classed as a firm mattress will feel the same in different shops. Firmness is subjective, and manufacturers describe the firmness of their mattresses in a range of ways.
That's why we don't use terms such as soft and firm in our reviews. Instead, we test mattress firmness on a scale of one to 10, where one is the firmest and 10 the softest, so you can easily compare the firmness of different mattresses.
We also measure how supportive each mattress is for a range of different body sizes and sleeping positions, so whether you prefer to sleep on your front, side or back, we've got you covered.
Medical-sounding terms, such as ‘orthopedic’ and ‘posturepedic’, don't necessarily mean a mattress is better for you. There are no restrictions on the term 'orthopedic mattress', so any mattress can use that description.
The body-support rating we give in our mattress reviews shows how well each mattress keeps your spine in its natural position. This is your best guide to finding one that's good for your back.
There are four main mattress types to choose from: pocket sprung, latex, coil and memory foam. Mattresses of all types have impressed in our tough tests, so the type you choose really comes down to personal preference and how much you want to spend.
Most mattress manufacturers make more than one type, and the manufacturing process and cost will be different for each.
Price isn't everything, though – the most important thing is what you, as an individual, find comfortable.
The most common type is a coil mattress, which can be either open coil or continuous coil.
Not sure which type of mattress is best for you? We look at the pros and cons of the main types to help you find out.
If you want a traditional mattress with a natural filling, such as wool, you'll want a pocket sprung mattress.
Mattresses with spring systems are usually padded with synthetic polymers, but some contain natural fibres such as horsehair or wool. These layers can affect firmness and breathability, both of which we test in every mattress. But more layers aren’t always better – the support from the springs is more important.
With springs, it's quality rather than quantity that's important. We've tested mattresses with densities ranging from 440 to 1,085 springs, and found wide variation in the level of support offered.
Memory foam mattresses, also known as memory mattresses, are topped with a layer of temperature-sensitive viscoelastic material (memory foam).
This makes the shape of the mattress change to fit the shape of your body, and also tends to make the mattress feel warmer.
Continuous coil mattresses are made from a single looped wire and open coil mattresses are made of single springs fixed together by one wire.
When we surveyed Which? members to find out more about mattresses, those who own an open coil mattress are less likely to say it helps them to get a good night's sleep than those who own other types.
Latex is a less common type of mattress which has a core made up of layers of springy latex.
These are different from mattress protectors in that they add a layer of extra padding to your existing bed. Mattress toppers can be made of memory foam or other materials.
However, they can be as expensive as buying a new mattress in some cases, and won’t provide more support if your old mattress is already sagging.
These are mattresses that you buy online, and they come vacuum-packed into a box and delivered direct to your door. There are four reasons why you should consider one:
Hot on the heels of the bed-in-the-box craze, the rolled-up mattress is gaining popularity. These mattresses come vacuum-packed in a handy cotton bag, so you can take them home with you. Alternatively, they can be delivered to your home and easily taken to the room you need – without having to try to wrestle a large mattress up your stairs or around tight corners.
However, they sometimes need to be aired or left for a fair few hours to regain shape, which might be a faff if you need to use it quickly.
As mattresses serve a single basic function – to help us sleep – they don't come overloaded with jazzy features. But there are still a few things to look out for.
As the name suggests, only one side of a one-sided mattress is designed to be slept on.
Mattresses can be extremely heavy – the heaviest we've seen weighs more than 50kg – so you might be relieved that you don't need to flip it.
You'll probably still need to rotate it from head to toe, though, so it's a good idea to check the ease-of-use rating in our mattress reviews.
Many pocket sprung mattresses also contain layers of synthetic fillings, such as foam.
If you're keen to avoid these, look out for mattresses that are specifically claimed to be made using only natural materials.
Look carefully at the claims, though, some might only have a token layer of natural materials.
Similarly, just because a mattress contains memory foam, it doesn't make it a memory foam mattress.
We only class a mattress as memory foam if it contains more than just a token layer of the body-moulding material. See all our memory foam mattress reviews.
A new mattress can cost anywhere between £100 and several thousand.
Factors such as brand, size and the types of material used can all have a significant impact on cost. But, as the graph below shows, our mattress tests have found that you don’t need to spend a fortune to get a mattress that will support your spine and last for years.
Number of Best Buy mattresses by price
Number of Best Buys
Less than £300
More than £900
Buying a mattress online might be cheaper and more convenient but, unless you’re buying a bed-in-a-box mattress, it’s always best to try before you buy if you possibly can - and if shops are open.
When we asked Which? members about their experience of buying a mattress, more than a third told us they feel intimidated trying out a mattress in the shop.
When trying out a mattress in store:
If you’re buying a memory foam mattress, relax in one position, then move into another. Was it easy or did you struggle to move? If you struggled, you might find that the memory mattress restricts your movement too much, especially in cold weather when the foam will be harder.
Manufacturers may encourage you to buy a mattress and bed base together, and this is a good idea if you’ve had your old base for many years.
If you buy the mattress and base separately, or are going to keep your old base, measure carefully to make sure they’re a good fit. Dimensions can vary, so don’t rely on a new double mattress being exactly the same size as your old one.
If you’re looking for a bargain mattress, one option is to try a few in a shop, before going home to search for the best price online.
That’s what 6% of Which? members did when they bought their last mattress, according to our recent October 2020 quick poll.
Unsurprisingly, given the events of 2020, around 76% responded to say they'd bought online (without trying their mattress first).
Meanwhile, 16% tried a mattress in store before having it delivered to their house.
If you can't get to the shops at the moment, here are our top tips for buying online:
When you buy online you’re protected by consumer law. But do your research first: read our reviews and opt for a model that best fits your sleeping style. We have picks for front, side and back-sleepers, people who fidget a lot, and those that tend to get too hot or cold.
Find out whether your chosen mattress has a trial period, how long this lasts and how you return it once the trial is up. Look for any hidden costs involved, and whether you have to return the mattress back in the original packaging or not.
Make sure you know what your rights are if there's a problem with your mattress. Most guarantees for mattresses won't cover gradual wear and tear, which leads to loss of support.
You should also check whether there’s anything in particular, such as removing labels or using a base other than a recommended one, that would invalidate the guarantee.
If you change your mind, you’re entitled to a 14-day cooling-off period from the date you receive goods. This means you can cancel your order at any time from the moment you place your order up to 14 days from the date it arrives, and the seller is obliged to refund you. Find out your .