Best mattress deals 2025

If your mattress is old and sagging, take a look at the dream deals we've rounded up this month and spring into the new season with a new mattress.

Our carefully curated list of the best mattress deals will save you time, effort and money, as well as identify the genuine bargains.

Head to our mattress reviews to find out which are the most long-lasting and supportive so you don't end up with a nightmare.

Best mattress deals for May

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.

Our pick: SleepSoul Heaven

• Double
• Foam and springs

We like: It's easy to turn over on this mattress

We don't like: You might find it a bit bouncy

With prices typically starting at £250 for a double, the SleepSoul Heaven is good value if you're after a new mattress but don't have a massive budget. Listed as either the SleepSoul and Birlea SleepSoul for different prices in some retailers, it's worth looking at both if you want to track down the cheapest offer price when you buy.

It arrives rolled up in a box and only weighs 24kg, so it's not too tricky to carry to the room you want it in. 

Under the non-removable cover there's a generous 21cm pocket sprung core and multiple layers of foam, including a cool gel foam, which helps the mattress feel cold to lie one – helpful if you tend to overheat in the night.

Find out how well it will support your back while you sleep, read our full SleepSoul Heaven review.

Best mattress deals: £200-£299

Simba Cool Foam

• Double
• Foam

We like: Comes with a sleep trial, it's not bouncy

We don't like: Some people won't like the memory effect of the foam

Although mattress technology has changed in recent years, there are still some older mattresses around that provide good sleep and good value. The Simba Cool is one of them. Available exclusively from Argos, it's already reasonable price is discounted further this month by 20% using the code FURN20.

This double mattress has a simple structure, with a 2cm layer of comfort foam sitting on top of a 12cm layer of denser base foam, it's not too warm to lie on, but there is a memory effect, which some people don't like.

Read our full Simba Cool Foam review to see if it will give you a good night's sleep.

You can find it for £239 exclusively at Argos.

Breasley Select PLUS Memory 1000 Pocket

• Hybrid
• Foam

We like: Despite the foam, it's not too warm to lie on

We don't like: It's bouncy

This mattress is available exclusively from online mattress retailer Mattress Next Day. It’s delivered rolled and vacuum-packed, direct to your door. You can't try it out in shops, but there's no sleep trial. However, it has a five-year manufacturer's guarantee on the mattress core and a one-year guarantee on the cover.

It's a hybrid mattress that claims to offer 'tailored support' through a combination of pocket springs and 'body-moulding memory foam'.

This 21cm-thick double mattress includes a 14cm pocket spring core over a shredded polyurethane base layer and has a washable cover.

Our in-depth Breasley Select PLUS Memory 1000 Pocket review will help you decide whether this is the mattress deal for you. 

Best mattress deals: £300-£599

Silentnight Just Bliss

• Double
• Pocket sprung

We like: The 60-night sleep trial, it's not too bouncy

We don't like: The cover isn't removable for washing

Not quite sure if you want a foam mattress or a pocket sprung? Silentnight's Just Bliss double mattress combines a large pocket sprung core with layers of gel-infused foam, which should provide you with support and a bit of pressure relief for an aching back.

Our independent tests rate this mattress as medium firmness, with a 5.4 score on a scale of 1 (very firm) to 10 (very soft). It feels cold to lie on, so it's a good choice if you tend to sweat at night. 

But will it give you all-around body support and last as long as you'd expect?

Head to our full Silentnight Just Bliss mattress review to find out.

Buy a double for £421 from Mattressman or see offers at other retailers below.

Jay-Be 2000 Hybrid E-Pocket Eco Truecore

• Double
• Pocket sprung

We like: It feels cold to lie on, it's not too bouncy

We don't like: The cover isn't removable for washing, no sleep trial

This isn't the cheapest price we've seen the Jay-Be 2000 Hybrid mattress on sale, but it's still a good deal. 

The term ‘hybrid’ is slightly confusing here. Hybrid mattresses are usually a mix of pocket springs and foam layers, but there's no foam in this mattress. This forms part of Jay-Be’s eco claims. Instead, it's made from pocket springs and layers of polyester: an 18.5cm pocket spring core, with a 2.5cm mini pocket spring core on top and several layers of polyester webbing.

But will the lack of foam mean it's less supportive?

Read our full Jay-Be 2000 Hybrid E-Pocket Eco Truecore review to find out.

Jay-be Nettle Hybrid 2000

• Double
• Pocket sprung

We like: 100-night sleep trial included, 10-year warranty, won't trap heat around you

We don't like: The cover is removable, but it can't be washed

The name Nettle conjures up images of weeds stinging your shins rather than softness, but Jay-Be claims the nettles and other plant-based fibres such as cotton used in this mattress provide natural comfort and exceptional breathability. 

The large 17.5cm pocket spring core and 3cm mini pocket spring means we class this double mattress as pocket sprung, rather than hybrid – despite the fibrous layers between the springs.

When it comes to firmness, our independent tests rated it as 6.5, on a scale of 1 (very firm) to 10 (very soft).

Read our review of the vegan-friendly Jay-be Nettle Hybrid 2000 mattress to see if it passed our tough durability tests.

Coolflex Hybrid ICE

• Double
• Memory foam and springs

We like: The foam won't suck you in too much

We don't like: Cover isn’t removable for washing

The Coolflex Hybrid ICE Mattress, sold by online retailer Mattress Next Day, combines pocket springs with a 'cool gel' memory foam, which is supposed to provide support as well as a 'cool and fresh' slumber. 

It consists of one large 18.5cm pocket spring core with four layers of foam: three standard foams of different thickness and one 2cm layer of memory foam sandwiched in between. It arrives boxed, which makes it easier to move about.

There’s a 100-night sleep trial included. If you don’t love it after a minimum try of 50 days, you can swap it, provided you’ve used a mattress protector, but there’s a fee of £99.

Is this memory foam with springs mattress any good? Find out in our Coolflex Hybrid ICE review.

Eve Original Foam

• Double
• Foam

We like: It's fairly light

We don't like: Free returns up to 40 nights only

The Eve Original mattress has been around for a while, but it’s back on sale after a brief pause for a design refresh and you can get a discount if you purchase it now – you can buy online, and it will arrive vacuum packed and rolled up.

Eve offers a 10-year warranty and a 200-night sleep trial. You can send it back for a full refund if you don't like the feel of it, but only within the first 40 nights. Or you can keep going until 200 nights and pay to send it back.

This mattress has a 16cm standard polyurethane foam core, on top of which sits a 3cm layer of viscoelastic memory foam and a further 3.5cm layer of foam.

Is Eve the right mattress provider for you? Our Eve Original review reveals all.

Buy the Eve Original Foam direct from Eve for £649

Best mattress deals: £600 and up

Simba Hybrid

• Double
• Memory foam and springs

We like: 10-year warranty included

We don't like: Feels a bit bouncy

Introduced in 2023, the Simba Hybrid is an update to the Simba Original Hybrid. It's made in the UK and is delivered rolled up in a box. If after 200 nights, you decide it's not for you, you can return it for free.

The mattress is composed of a 2.5cm layer of recycled foam, covered by 16cm pocket spring core, then 2cm standard polyurethane foam. There's another 2.5cm mini pocket spring core on top, along with 2cm of Simbatex high-resistance polyurethane foam.

When it comes to firmness, our independent tests rated it as 6, on a scale of 1 (very firm) to 10 (very soft).

Read our Simba Hybrid mattress review to see how it performed in our tests.

The mattress is currently on sale at Land of Beds for £649.

Looking for something specific? We have guides to best pocket sprung mattresses, the best memory foam 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 panic about buying a mattress purely because it's on sale, because 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. 

Healthy living

Use our expert advice and recommendations to live your best life every day.

Get started

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. And, 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. 

So 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 are not currently recommending any Emma mattresses as Best Buys, as the brand is being taken to court by the Competitions and Markets Authority (CMA) regulator due to 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. Eve 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. 

Be warned, though – if you buy an Eve mattress via another retailer, such as Argos, the trial nights offer might not apply.

As a guide, we've seen deals offering 20-30% off and up to 50%. 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.

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 £361.

Not sure which one to go for? Head to the top five most popular Ikea mattresses to choose from there.

Read our Ikea mattress reviews.

Simba mattress deals

Simba is another brand that's no stranger to a deal, and one that's also been at the centre of a (now resolved) CMA sales tactics investigation. 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, as there can be conditions attached – such as a minimum spend or a discount that only applies to a particular mattress.

Read our Simba mattress reviews.

Sign up for our Deals newsletter

Grab genuine bargains using our expert tips in the monthly Deals newsletter

Sign up

Revamping your bed? See our guides to the best mattress toppers and the best mattress protectors.

Are mattress sleep trials worth it?

Sleep trials – commonly offered by online-only, bed-in-a-box mattress brands – allow you the 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 suffer from back pain, for example, it could take quite 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, if you need to use a mattress protector and what you need to do 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 they're 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.

• Argos
• Bensons for Beds
• Dreams
• Furniture Village
• John Lewis & Partners
• MattressOnline

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 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 their mattress in-store, while 53% shopped online.  

Head to our best mattress brands guide to find out where's best to shop.