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 and 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 mattress.

Best mattress deals for April

Prices and deals are correct at the time of writing, but deals can change or end at short notice. Always check your 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 mattress 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, it's hard to find a better value mattress. Confusingly it is listed as the Sleepsoul and Birlea Sleepsoul for different prices in some retailers, so it's worth looking at both if you want to track down the cheapest price when you buy.

It arrives rolled up in a box and only weighs 24kg, so it's easy to carry to the room of your choice. You can use its four handles to lift and rotate it to even out wear and tear.

Under the non-removable cover there is a generous 21cm pocket sprung core and multiple layers of comfortable foam, which give it a soft tension. The layers include a cool gel foam which produces a 'cold' insulation level - helpful if you tend to overheat in the night.

Find out how well it encourages correct spinal alignment with our full Sleepsoul Heaven review.

Need an extra layer of defence? Find the best mattress protector

Best mattress deals: £200-£299

Simba Cool Foam

• Double
• Foam

We like: It's not too hot and not too cold

We don't like: It gives off a bit of an odour at first

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. 

It has a fairly simple structure, with a 2cm layer of comfort foam sitting on top of a 12cm layer of denser base foam. It's a good choice if you prefer a mattress with a firmer tension.

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.

Silentnight Now 7 Zone Memory Foam

• Double
• Foam

We like: The removable machine-washable cover

We don't like: It's a bit bouncy and hard to rotate, no sleep trial

If you're after a basic foam mattress, this Silentnight could be a good option: it has a 17cm foam core, with a token 2.4cm layer of memory foam on top.

Silentnight says it will gently hug you, and we agree – the memory effect isn't too strong so you won't be sucked into the mattress.

It's been around for a while, and it's not the cheapest price we've ever seen it at, but it's still a pretty good deal.

Read our full Silentnight Now 7 Zone memory foam review to see if it will give you a good night's sleep. 

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 from 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, £455 at John Lewis 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 is 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 from 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.

Best mattress deals: £600 and up

Simba Hybrid

• Double
• Memory foam and springs

We like: 200-night sleep trial included, 10-year warranty

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 is 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 from 1 (very firm) to 10 (very soft).

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

The mattress is currently on sale at Land of Beds for £639.

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. 

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, or 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.

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Looking for a mattress topper to revamp an old mattress instead of buying a new one? See our guide to the best mattress toppers.

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 have 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.