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Best mattress deals 2026
With over two decades of rigorous product testing experience, Lisa is a veteran consumer advocate. Leading our mattress category since 2020, with a mission to provide transparency in the mattress deals market, so no one has to compromise on sleep or value.
Is your old mattress sagging and making you uncomfortable? Check out the best mattress deals we've rounded up to help you wake up with a spring in your step.
Our carefully curated list of the best mattress deals will save you time, effort, and money, and help you spot the genuine bargains.
For more tips on choosing your perfect mattress, see our guide to the best mattresses.
Best mattress deals for April 2026
Prices and deals are correct at the time of writing, but deals can change or end at short notice. Always check the deal's T&Cs before you buy. All prices quoted are for a standard double mattress.
Our guide to UK bed sizes and our best mattresses guide will help you choose the right one for your bed.
See all the mattresses we've tested by going to our mattress reviews.
What make Which? deals different
Retailers sometimes use misleading ‘was’ and ‘before’ prices to claim their deals are good. Media sites and artificial intelligence (AI) promote deals from retailers – but do they always check/verify them first? We don’t just take retailers’ word for it, we track actual market prices over six months. We share cheapest and average calculations and evaluate products against strict performance benchmarks. So you get good quality at honest prices.
*References to 'average price' and 'cheapest price' are based on Which? market knowledge and information supplied by our partners. Prices are checked for six calendar months prior to publication. Not all retailers are included in our checks.
Our pick: Silentnight Just Relax
Average price in the past six months: £299
Cheapest price in the past six months: £244*
Pay just £244 at Argos, or browse these suppliers.
- Double
- Foam
We like: It has a 10-year manufacturer guarantee
We don't like: There are no handles for rotating it
Bag a bargain with this entry-level foam mattress, on offer at Argos. It's light and simply constructed from a polyurethane foam core, topped with pressure-relieving memory foam, and only 18cm deep. It's delivered for free, rolled up, so it's easy to carry into your bedroom.
Beware if you prefer a firm sleeping surface as this mattress is as soft as they come. You may find that its sink-in top layer of memory foam makes it comfortable but a bit engulfing.
Read our full Silentnight Just Relax review to find out if Silentnight mattresses win plaudits from our members for being comfortable.
Silentnight Just Snug
Average price in the past six months: £447
Cheapest price in the past six months: £312*
Get this double mattress for £424 at Argos, or browse these suppliers.
- Double
- Pocket sprung
We like: It's really easy to turn over on.
We don't like: Like most mattresses you can't remove the cover for washing
If you prefer a slightly more traditional sprung mattress, you can still take advantage of the Argos discount on Silentnight products with the entry-level Just Snug.
This mattress combines an 18cm layer of micro pocket springs surrounded by fibrous filling, with a 2cm layer of memory foam on the surface closest to the body.
It’s marketed as a medium/firm mattress; in our independent tests rated it as a 5.5 on a scale of 1 (very firm) to 10 (very soft). It has been around for a long time, but has been improved in its latest incarnation with handles to help you rotate it easily to even out wear and tear.
Read our full Silentnight Just Snug review to find out if it offers the support you deserve while you dream.
Other Silentnight mattresses on offer
- Silentnight Just Bliss - now just £463 at Argos.
Sleepsoul Space Orthopaedic Cool Gel
Average price in the past six months: £514
Cheapest price in the past six months: £431*
- Double
- Foam
We like: It's easy to turn over on despite the memory foam
We don't like: Some people don't like a mattress with a high memory effect
The Sleepsoul Space Orthopaedic Cool Gel is composed of a lot of layers, including a mixture of pocket springs, foam and memory foam. It’s available from a number of online retailers and comes, rolled and boxed, straight to your door. It’s also known as the Space Orthopaedic 4000 (pocket sprung) so if you spot this on your box, don’t be alarmed.
Starting at the bottom, you’ll find a large 22cm micro-pocket spring core, topped with a 2cm layer of standard foam. Then comes another 8cm layer of pocket spring, topped off with several different layers of foam and memory foam. This includes a 2cm layer of what Sleepsoul calls ‘cooling gel’, closest to the surface you sleep on,
Sleepsoul describes this mattress as ‘firm’. In our independent assessments, where we use a scale from one (firmest) to 10 (softest), it was ranked 7.6. There’s a 10-year warranty included when you register your mattress, but it doesn’t come with a sleep trial.
Read our full Sleepsoul Space Orthopaedic Cool Gel review to find out if you are likely to enjoy this mattress's high memory effect.
Jay-Be 2000 Hybrid E-Pocket Eco Truecore (130/0242)
Average price in the past six months: £387
Cheapest price in the past six months: £220*
- Double
- Pocket sprung
We like: Jay-Be says it contains no foam, a claim that forms part of its eco credentials
We don't like: We found the layers tricky to separate for recycling
Inside the Jay-Be 2000 Hybrid E-Pocket Eco Truecore (130/0242) you'll find an 18.5cm pocket spring topped with multiple layers of polyester webbing.
We rated it a 6.1 on our rating scale, where 1 is very firm and 10, very soft.
There's only a five-year warranty with this mattress which is worth bearing in mind. The cover can't be removed for cleaning, so you'll have to factor that into general maintenance.
Read through our Jay-Be 2000 Hybrid E-Pocket Eco Truecore (130/0242) review to find out more about how this mattress did in our test lab.
Looking for something specific? We have guides to the best pocket sprung mattresses, best memory foam mattresses, best hybrid mattresses and the best mattresses for back pain.
How to spot a good deal on a mattress
Lisa Galliers, Which? mattress expert, says:
'Don't rush to buy a mattress purely because it's on sale, as there are plenty of discounts throughout the year. Some of the mattresses in this round-up have been available at the offer price for a while, but are still a good price.
'We've also tested a range of good-value mattresses from brands that don't usually offer discounts – so if you want to keep costs down, you can still pick up a decent model for a fraction of the price of some.'
Not happy with your current mattress? You might be able to return it. Find out how to return a mattress. Can't return it? Find out how to get rid of your mattress, including options to recycle or donate it.
How to get the best deals on specific mattress brands
Whether you're after a new double mattress or want to swap your old mattress for a new memory foam one, it's worth keeping an eye out for sales on your favourite brand's website. Social media can also be a good place to spot a bargain.
Offers come and go throughout the year, but the deals might not be on the particular mattress you want, so check the T&Cs.
Make sure you're ready when the discounts start. Compare mattresses to find out which ones will be a dream and which could turn into an expensive nightmare – and don't forget that retailers might have other sales in-store.
Dormeo mattress deals
You might have spotted Dormeo mattresses on TV or via ads popping up on Facebook – we've seen a range of deals available, along with free gifts such as pillows and duvets on top of existing price reductions. Although its mattresses can be found through other retailers, in the past we've noticed that buying direct from Dormeo can sometimes save you a small amount in addition to any free gifts it may be offering.
We'd suggest you check the website as a starting point. We've seen discounts of up to 60% in the past.
Read our Dormeo mattress reviews.
Emma mattress deals
The Emma Original mattress used to be one of the most popular models on the Which? website. But while it scored well in our lab tests overall, we're not currently recommending any Emma mattresses as Best Buys because the brand is being taken to court by the Competitions and Markets Authority (CMA) regulator over its online sales practices.
Read our Emma mattress reviews.
Eve mattress deals
Another bed-in-a-box mattress brand, Eve is now owned by Bensons for Beds. You can find deals on the Eve Sleep website and at other retailers. It offers a 200-night sleep trial, so you can try out the mattress and, if you don't love it, send it back free of charge within 40 days.
As a guide, we've seen deals offering 20-30% off and up to as much as 50% on occasions. Check the T&Cs before you buy, as these discounts often apply only to certain models, if you spend above a particular amount or for new customers. Eve seems to swap deals fairly regularly between its mattresses.
Be warned, though – if you buy an Eve mattress via another retailer, such as Argos, the trial-nights offer might not apply.
Read our Eve mattress reviews.
Ikea mattress deals
You might not see Ikea mattresses on offer, but that's because they're generally good value for money at full price. We've got 12 of them on our website, ranging from £99 up to around £689, with an average price of £312.
Not sure which one to go for? Head to the five most popular Ikea mattresses to narrow down your shortlist.
Read our Ikea mattress reviews.
Simba mattress deals
Simba is another brand that's often on offer. It's also been at the centre of a (now resolved) CMA investigation into sales tactics. Simba mattresses arrive vacuum-packed in a box to your door; the company offers free returns and its website states that it won’t ask you to get the mattress back in the box for the return journey.
We've spotted a range of deals from Simba offering 25-40% off. As a rule, 30-35% off is a good deal. Do check the T&Cs, though.
Read our Simba mattress reviews.
Are mattress sleep trials worth it?
Sleep trials – commonly offered by online-only, bed-in-a-box mattress brands – give you time to try out a mattress to see if it's the right one for you. If you don’t like it, you can return it within the trial period.
This can be useful if you're not sure which type of mattress will suit you best.
A long sleep trial lets you try your mattress during different seasons and gives you time to adjust, which is particularly important if you’re switching from springs to foam. If you experience back pain, for example, it could take a while to get used to a new mattress.
Not all sleep trials are the same, though, and some have strings attached.
If you're buying a mattress that offers a sleep trial, check the T&Cs first. See how many nights you'll be able to keep it for, whether you need to use a mattress protector and how to return it if it's not right for you.
Also, bear in mind that if you buy from a third-party retailer, the terms of a sleep trial – and whether it's offering one at all – might differ from those you get if you buy directly from the brand.
Read more about mattress sleep trials and find out which brand offers the longest.
Where's the best place to buy a mattress?
Retailers also offer their own deals throughout the year. We've listed some retailers below to get you started. Check T&Cs for deals before you buy.
To find the best shops to buy a mattress, we surveyed 1,800 Which? Connect panel members in October 2023. We asked how satisfied people were with their shopping experience from mattress retailers, both in-store and online.
Our latest survey of the best mattress brands rates mattress shops including Emma, Eve, Ikea and John Lewis on the quality and range of their products, as well as on advice and delivery. It also reveals that Which? members are divided on where they shopped for their mattresses: 47% bought theirs in-store, while 53% shopped online.
Revamping your bed? See our guides to the best mattress toppers and the best mattress protectors.