Best mattress deals UK 2025: Save big on Emma, Simba and more this July

A GOOD mattress is the foundation of perfect sleep, but top-quality products don’t have to empty your bank account this July!

If that ancient mattress has you tossing and turning night after night, now is the perfect time to check out our pick of the best mattress deals from Emma, Simba, Dusk, Silentnight and more.

A young Black woman sleeping peacefully in bed.
Getty
Is it time to upgrade your mattress?[/caption]

And with Amazon Prime Day just days away, you can bet Amazon will be rolling out jaw-dropping deals on mattresses too!

This four-day mega event runs from July 8 to 11, with previous years offering incredible discounts on top sleep brands.

Make sure to bookmark our Prime Day deals guide to catch all the best mattress bargains when they drop!

With the UK already experiencing record-breaking temperatures this summer, investing in a mattress that keeps you cool throughout the night isn’t just a luxury — it’s essential for a good night’s sleep.

Already dreading those sticky summer nights ahead? Our expert guides to the best cooling mattresses and best cooling pillows will be your ultimate salvation during these scorching heatwave months.

I’ve hunted down genuine discounts from the most trusted brands in sleep — Simba, Emma, Panda, Nectar, Brook + Wilde and more — giving you the chance to completely transform your sleep quality right when you need it most.

Don’t just focus on price, though — think about what YOUR unique body needs. Plush softness or firm support? Side sleeper? Stubborn bad back?

Whether it arrives neatly vacuum-packed at your doorstep or with professional white-glove installation, now is absolutely the perfect moment to revolutionise your sleep for less.


5 best mattress deals this July at a glance:

  1. Emma Luxe Cooling Mattress, £549.50 (was £1,000) + extra 5% off with code THESUNbuy here
  2. Simba Hybrid Mattress, £649 (was £1,199)buy here
  3. Dusk Memory Foam 4000 Pocket Sprung Hybrid Mattress
    £459 (was £789) buy here
  4. Silentnight Just Dream Premium Hybrid Mattress, £480 (was £800)buy here
  5. Dusk Memory Foam 2000 Pocket Sprung Hybrid Mattress, £349 (was £579) – buy here

We have based prices on double-sized mattresses. 


Read more in bedding

KEEP YOUR COOL

We test 11 of the best cooling pillows for hot sleepers

SLEEP EASY

Simba mattress sale deals UK: Save 20% on a sleep upgrade this July

Best mattress deals this July

Emma Luxe Cooling Mattress: save 50% + extra 5% off with code THESUN

Illustration of a mattress cut away to show its layers.
Emma
The ultimate combo of comfort, support, and temperature regulation[/caption]

Emma Luxe Cooling Mattress, £549.50 (was £1,000) + extra 5% off with code THESUN

What’s the deal? There are some seriously hot Emma mattress deals right now—including a massive 50% off the Luxe Cooling Mattress.

On top of the sale discount, The Sun readers can get an extra 5% off using the code: THESUN at checkout.

Why it’s a great buy: The Emma Luxe Cooling Mattress features memory foam paired with seven zones of pocket springs, offering targeted support for your entire body.

The cooling cover is a game-changer for hot sleepers, keeping you cool and sweat-free through the night.

Simba Hybrid Mattress: save 45%

Simba Hybrid Mattress floating in mid-air.
Simba
Worth every penny.[/caption]

Simba Hybrid Mattress
£649 (was £1,199)

What’s the deal? Grab Simba’s bestselling Hybrid mattress with a massive £550 off!

Why it’s a good buy: This game-changing mattress features innovative Aerocoil springs, cooling Simbatex foam, and a nine-zone support system that perfectly cushions the shoulders and hips.

The original Hybrid has thousands of happy sleepers because it delivers that perfect balance between cloud-like comfort and proper support.

Those nine body-aligned zones work wonders for anyone with aches and pains, while the breathable design keeps hot sleepers cool all night.

Dusk Memory Foam 4000 Pocket Sprung Hybrid Mattress: save 41%

Mattress on a platform bed with a sweater on top.

Dusk Memory Foam 4000 Pocket Sprung Hybrid Mattress
£459 (was £789)

What’s the deal: Snap up Dusk’s premium hybrid mattress at a jaw-dropping discount – that’s an incredible £284 saving on this luxury sleep solution.

Why it’s a great buy: This top-tier hybrid mattress combines a massive 4000 individual pocket springs with premium memory foam layers, all wrapped in a luxuriously soft knitted casing.

The high spring count provides exceptional support where you need it most, while the memory foam gently contours to your body for pressure relief.

If you’re after hotel-quality sleep at home, this mattress delivers serious comfort that keeps you perfectly supported and temperature-regulated throughout the night.

Silentnight Just Dream Premium Hybrid Mattress: save 40%

Pink bed with a Silentnight mattress.
Backed by Silentnight’s reassuring 10-year warranty

Silentnight Just Dream Premium Hybrid Mattress, £480 (was £800)

What’s the deal? If you’re a side sleeper desperate for that perfect balance of cushiony comfort AND proper support, this Silentnight gem with a £200 discount has your name all over it.

It’s boxed, rolled and delivered straight to your door, backed by Silentnight’s reassuring 10-year warranty, AND you can try it risk-free for a full 365 nights.

Why it’s a great buy: The Just Dream Premium is the real deal, combining up to 1000 individually responsive Mirapocket springs with multiple layers of premium memory foam that literally contours to your unique body shape.

The clever ReVo cooling tech actually circulates air while you sleep, and the Vitalise sleep surface harnesses your body heat to improve your circulation and metabolism as you rest.

Dusk Memory Foam 2000 Pocket Sprung Hybrid Mattress: save 39%

Mattress on a platform bed in a bedroom.

Dusk Memory Foam 2000 Pocket Sprung Hybrid Mattress
£349 (was £579)

What’s the deal: A massive £195 saving on this premium hybrid mattress from Dusk, bringing the price down from £579 to just £349.

Why it’s a great buy: This medium-firm hybrid masterpiece combines 2,000 individual pocket springs with luxurious memory foam, providing the perfect balance of support and sink-in comfort.

The pocket springs work independently to respond to your body’s unique shape, while the memory foam layer moulds perfectly to your contours, relieving pressure on joints and ensuring proper spinal alignment.

Ideal for side and back sleepers seeking the Goldilocks “just right” firmness level.

Silentnight Brooklyn 800 Pocket Memory Mattress: save 20%

Mattress and divan bed in a bedroom setting.

Silentnight Brooklyn 800 Pocket Memory Mattress
£188 (was £235)

What’s the deal: Argos has slashed 20% off this fantastic Silentnight Brooklyn mattress, bringing it down to just £188.

Why it’s a great buy: Combining 800 responsive pocket springs with a generous layer of body-moulding memory foam, this mattress offers impressive comfort at an affordable price point.

The pocket springs provide targeted support for your entire body, while the memory foam layer relieves pressure on joints and helps maintain proper spinal alignment.

It’s also hypoallergenic and comes with Silentnight’s comprehensive 5-year guarantee, making it ideal for allergy sufferers seeking quality sleep without breaking the bank.

Brook + Wilde Lux Mattress: save 20% with code SAVE20 

best-mattress-deals
Brook + Wilde
This clever design can help ease aches and pains[/caption]

Brook & Wilde The Lux Mattress, £636 (was £795) with code SAVE20 

What’s the deal? Brook + Wilde is pulling out all the stops this summer with some major savings, including a whopping 20% off with code 33OFF at checkout.

If you’re looking for a mattress that offers luxury-level comfort and serious support, this one’s a no-brainer—especially at this price.

Why it’s a great buy: The Lux Mattress is a hybrid dream, combining two layers of adaptive memory foam with a layer of 1,000 pocket springs to deliver the perfect balance of comfort and support.

The top layers contour to your body for a cosy, tailored feel, while the second layer is designed to be slightly firmer at the foot end, ensuring your spine stays aligned all night.

How to choose a mattress?

When choosing a new mattress it is important to think about how you sleep!

Find the right mattress that supports your sleeping style. Side sleepers typically require a softer mattress for added cushioning, while back and stomach sleepers benefit from a firmer one for proper support. When shopping for a child, choose something that supports their growing body.

Consider your budget. To ensure you’re getting the best price on your chosen new mattress, always shop around and compare prices to find the best deal. or hold out for the regular sales or special promotions that take place throughout the year. You can also open the live chat box and speak with a company representative to discuss the specifics of the available deals.

Decide on the type of mattress you want. From pocket sprung or memory foam to hybrid or orthopaedic, there are a plethora of mattress designs to choose from. Each has its pros and cons, so it’s essential to conduct thorough research before making a decision.

While a mattress can be pricey, it’s an investment that’ll give you years of restful sleep – totally worth it!


Where to buy mattresses in the UK

Many online retailers now offer mattresses in a box, providing shoppers with a wider range of choices, varied price points, and ease of installation.

For shoppers who prefer trying before they buy, you can buy a mattress at a range of furniture and homeware shops, but you’ll get the best deals at specialised mattress retailers, including:

How to spot a good deal on a mattress?

When researching mattresses, you’ll quickly discover there are always deals to be had, no matter what type of mattress you’re looking for.

Brands like Simba and Emma often run regular offers, and stores like Dreams and Bensons for Beds hold sales with discounts on select mattresses.

If you know you need a new mattress soon, January sales can be a great time to buy, with generous stock clearances and significant discounts.

However, if you can’t wait for sale events, then make sure to shop around and compare prices before parting with your money.

You may also want to consider upgrading your bedding or adding a mattress topper while you’re at it.

What is the best month to buy a mattress?

While it’s true that mattress retailers tend to drop prices on certain days, such as bank holidays and during big shopping events, you’ll find a great mattress deal in pretty much any month of the year.

According to The Sleep Foundation, many mattress brands introduce new models in mid-to-late spring.

This means that the prices on older models are often slashed dramatically, so spring could be the most sensible time to buy a mattress.

Should I wait until Black Friday to buy a mattress?

Mattresses need to be replaced every six to eight years. If yours is on the way out, you’ll likely find yourself desperate to buy a new one as soon as possible.

Black Friday takes place in November, so there’s not much time left.

Although it’s one of the best times to buy a mattress for less, there are risks involved with waiting until the shopping holiday.

As many people buy mattresses on Black Friday, those with the biggest discounts tend to sell out quickly.

You can generally find a good deal at any time of the year, so it might be best to shop the sale now while your favourite model is still in stock.

How much do mattresses cost?

A good spring mattress doesn’t have to cost much more than £150 for a double.

Memory foam mattresses tend to be a little more expensive, but you can find good-quality doubles from around £300.

Hybrid mattresses, which contain a mix of foam and springs, are more expensive still and can cost anything from £400 to £1,000 and above for a double.

Other factors to consider when purchasing include the length of the trial period you’ll receive (most internet-only brands offer 100 nights), as well as shipping costs, which can quickly increase your overall costs.

Some of the online-only brands, such as Emma, offer free delivery.

Which is the best bed-in-a-box company?

Opinions on this are constantly evolving as newer and more innovative designs emerge on the market.

Most of the top bed-in-a-box brands have thousands of five-star reviews, so you can trust that there are plenty of quality options out there.

However, a few names consistently appear on the best mattress lists.

Brands like Emma and Simba are recognised not only for their top-rated mattresses but also for their excellent customer service and delivery.

How often should you change your mattress?

The Better Sleep Council recommends replacing your mattress every seven years, but this is just a guideline.

If your mattress is in good shape and still comfy, you can keep it longer.

However, if you’re sleeping better in hotel beds or waking up sore, it’s probably time for a new one.

The best sleep routine and environment

Thomas Høegh Reisenhus, TEMPUR® sleep specialist & sleep counsellor, reveals the key components of a good bedtime routine and environment...

A sure-fire way to facilitate a better night’s sleep is to practice good sleep hygiene.

Establish a sleep routine that works for you and stick to it. 

This will help your body establish a consistent, natural sleep-wake cycle which can do wonders for your overall sleep quality. 

As such, try to avoid making up for lost sleep with a lie-in. 

Instead of sleeping in, spend your morning reading a book in bed or having a leisurely coffee in the kitchen.

Ensure that your bedroom, bedding, and sleepwear are fit for purpose too. 

The ideal sleep environment is dark, quiet, and cool – much like a cave. 

If you find unwelcome sources of light are keeping you up, consider investing in an eye mask or black-out curtains.

Adding soft furnishings can be a great way to reduce noise, with the surfaces having an absorptive quality, but if this doesn’t work, consider embracing a soothing soundtrack to block it out.

In terms of temperature, try to keep your bedroom at 18°C. You can further reduce the risk of waking up due to overheating by ensuring that all your bedding and sleepwear is made with natural, breathable materials such as cotton and linen.

Bear in mind that everyone is different; what might work for most, may not work for you! 

Whilst knowing how much sleep you should get, how to overcome common barriers, and practicing good sleep hygiene can facilitate a great night’s sleep, if you continue to struggle with sleep or fatigue persistently, do not hesitate to visit a doctor or health professional for support.


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