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10 best mattresses in a box for easy delivery and total comfort

Our experts and panellists got unboxing to find best for snoozing on

By
VerifiedTested by Homes Testing Manager
best mattresses in a box

Mattresses in a box or roll-up mattresses (as they're variously known) are the easiest way to update your sleep set-up. They land on your doorstep boxed up and ready to spring into shape on opening. They still provide the same level of comfort as our regular best mattress buys, just without the extra leg work of lugging a large, unwieldy object into your bedroom – provided you unbox them in situ, of course.

While we normally recommend trying out a mattress in-store before making a decision, these are available online only, which you may think of as a bit of a gamble. However, they offer either 200- or 100-night trials, so you have time to decide if it's the right option for you.

Plus, ordering mattresses online is increasingly common – in fact, most of our best mattresses in a box can be ordered in a few quick clicks. If you’re ready to invest, you'll find the Good Housekeeping Institute's top-rated designs below.

The best mattresses in a box for 2025

How we test at the Good Housekeeping Institute

To ensure each mattress in a box was up to shape, we asked a panel of consumers to trial them for up to six weeks. Then, they were sent a questionnaire, devised by our team of experts, and asked to comment on the comfort, design, quality, and overall performance of their new mattress. We also asked our testers whether they would happily buy the mattress and if they’d recommend it to friends and family – a sure sign they were impressed.

Next, to make sure that you can rely on your new set-up for many more nights to come, we turned to our reader panel to get longevity feedback on each mattress brand. Everyone who took part must have owned their mattress for at least six months so we could learn more about how they change over time.

Combining all that feedback, here's our round-up of the best mattresses in a box (all prices quoted are for a UK double).

Best mattress in a box

Emma Hybrid Thermosync Mattress

UK Approved(Esquire,Red,HB,GH,Country Living,Prima)
Hybrid Thermosync Mattress

Pros

  • No noise or motion transfer when rolling over
  • The mattress cushioned and supported our panellists' hips and shoulders well

Cons

  • Mixed feedback on temperature regulation – one hot sleeper found they still woke up warm, but it didn’t make them feel worse

Score: 92/100

Our best mattress in a box comes with four layers of memory foam as well as pocket springs to give you ultimate comfort – but it doesn’t stop there. Those springs are then split into seven zones to provide support from head to toe.

Panellists loved its boxed-up packaging, although a few noted that it was quite heavy to carry upstairs. Once it was in their bedrooms, it was easy to unroll, and their bedding fitted neatly. The new smell dissipated quickly, and every member of the panel said they slept well during the trial period.

Key specifications

SizesSingle, small double, double, king, super king, EU sizes
CompositionFoam and spring
FirmnessMedium
Depth 27cm
Free trial200 nights
Guarantee10 years
Joint runner-up

Emma Hybrid Airgrid

UK Approved(Esquire,Red,HB,GH,Country Living,Prima)
Hybrid Airgrid

Pros

  • No dips formed in the mattress during the trial
  • Edge-to-edge design was supportive and prevented any roll-off

Cons

  • Heavy and difficult to get onto the bed frame

Score: 90/100

Another Emma design, this one uses ‘AirGrid’ technology to create an adaptive comfort layer that’s both supportive and cradling. The breathable cover is made of polyester and can be removed for washing whenever your mattress needs a refresh.

Its weight (36.2kg) made it difficult to move into the bedroom and place on the bed frame; however, once unpacked from the box, our panel were pleased with how easily it unrolled and expanded. The premium build impressed from the start and panellists found it breathable and firm, delivering a great night’s sleep.

Key specifications

SizesSingle, double, king, super king
CompositionFoam and spring
FirmnessMedium
Depth 27cm
Free trial200 nights
Guarantee10 years
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Joint runner-up and best mattress in a box for temperature regulation

Origin Hybrid Pro

UK Approved(Esquire,Red,HB,GH,Country Living,Prima)
Hybrid Pro

Pros

  • One tree is planted for every mattress sold (among other sustainability claims)
  • All returned mattresses are donated to the British Heart Foundation

Cons

  • On the firm side
  • No removable or washable cover

Score: 90/100

Our testers enjoyed the supportive design of this high-scoring hybrid mattress, which has layers of pocket springs, foam, latex and wool all encased in a cooling Tencel cover. This helped regulate testers’ body temperatures well – one even said that sweating at night was now “a thing of the past”.

One tester found it difficult to manoeuvre once unboxed as there aren’t any handles, making it awkward to lift. But unbox it in the bedroom and you should only have to move it a little bit – it doesn’t need any rotation once it’s in place.

Key specifications

SizesSingle, small double, double, king, super king
CompositionFoam, springs, latex, Tencel wool
FirmnessMedium firm
Depth30cm
Free trial200 nights
Guarantee15 years
Best mattress in a box for easy delivery and unboxing

Simba Hybrid® Mattress

UK Approved(Esquire,Red,HB,GH,Country Living,Prima)
Hybrid® Mattress

Pros

  • Up to 2,000 pocket springs across 13 zones
  • Regulates body temperature well

Cons

  • Formation of dips after a few weeks, so be sure to follow advised rotation schedule

Score: 89/100

The Simba Hybrid Mattress is another design that combines memory foam and pocket springs, providing full body support without compromising on softness. Most testers were impressed with the helpful delivery team and found it easy to manoeuvre into their room of choice. Even the unboxing was easy thanks to the helpful tool provided for cutting the plastic wrapping!

It took its shape quickly and the new smell dissipated well. Testers found the mattress quiet to sleep on, and most would buy from Simba again. And the brand is a B Corp, making it a good pick if environmental credentials are high on your wish list.

Key specifications

SizesSingle, small double, double, king, super king, EU single, EU double, EU Queen
CompositionTitanium alloy springs and foam
FirmnessMedium to firm
Depth25cm
Free trial200 nights
Guarantee10 years
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Best value mattress in a box

REM-Fit Hybrid Pocket 1000 Mattress

UK Approved(Esquire,Red,HB,GH,Country Living,Prima)
Hybrid Pocket 1000 Mattress

Pros

  • Removable, washable cover for easy cleaning
  • Supportive for all sleep styles
  • Breathable

Cons

  • On the firmer side, which may not appeal to everyone

Score: 89/100

Panellists loved the compact delivery of this REM-Fit mattress and appreciated how it plumped up to its size quickly.

Inside the mattress, you'll find 1,000 pocket springs surrounded by open cell foam, which left one tester hailing it as "the most comfortable mattress" they'd ever slept on.

There's also a 100-night trial, so if it's not quite up to standard, you can return it. That's an unlikely scenario though considering almost every person we surveyed about the brand gave it a thumbs up.

Key specifications

SizesSingle, double, king, super king
CompositionSpring and foam
FirmnessMedium firm
Depth20cm
Free trial100 nights
Guarantee15 years
Best premium mattress in a box

Simba Hybrid® Luxe Mattress

UK Approved(Esquire,Red,HB,GH,Country Living,Prima)
Hybrid® Luxe Mattress

Pros

  • Regulates temperature effectively
  • Quiet to sleep on
  • Good back support

Cons

  • Deep so might need new bed sheets
  • New smell lingered for a few days

Score: 88/100

This luxurious buy received rave reviews from our panel for how quickly it took shape after opening. Plus, they only had to wait a couple of hours before they could test out the comfort of the 11-layer mattress (including a whopping 6,000 springs). The breathable layer of bamboo and wool deserves an honourable mention too, as it kept our panel cool.

At 31cm, this is one of the deepest mattresses on our list, so it’s worth double checking that it will work with your current bed frame – one tester found that it wasn’t a perfect fit.

Key specifications

SizesSingle, small double, double, EU queen, king, super king
CompositionSprings, foam, bamboo and wool layer
FirmnessMedium firm
Depth31cm
Free trial200 nights
Guarantee10 years
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Pros

  • Good edge-to-edge support to prevent you from rolling off during the night
  • Firmer than expected for a memory foam mattress
  • Notably quiet

Cons

  • Mattress cover was tricky to refit
  • Some testers found the mattress changed over time, becoming lumpy or not returning to original shape

Score: 87/100

If you’ve ever worried about ordering online, REM-Fit is the perfect example of why you shouldn’t. Our testers received delivery updates via mobile for every step of the journey and the delivery team was helpful, attentive, and efficient when getting our testers’ mattresses into place.

The mattress features an impressive 4000 pocket springs and a memory foam layer that’s denser in some spots (to provide optimum support in all the right places). Everyone found it comfortable to sleep on throughout the trial and testers praised how temperature regulating it was too. Just note that its dense design meant some found the mattress heavy to move and lift when fitting their sheets.

Key specifications

SizesUK single, EU single, long single, UK small single, UK small double, UK double, EU double, UK king, EU king, UK super king
CompositionPocket spring and memory foam
FirmnessMedium firm
Depth25cm
Free trial100 nights
Guarantee15 years

Simba Hybrid Pro

UK Approved(Esquire,Red,HB,GH,Country Living,Prima)
Hybrid Pro

Pros

  • Well-constructed and high-quality
  • Excellent communication during delivery

Cons

  • Quite deep so you may need new bed sheets 

Score: 85/100

Another option from B-Corp brand, Simba, this mattress in a box is packed with 4,800 titanium alloy springs as well as the brand’s bespoke foam to encourage airflow.

Panellists were pleasantly surprised at how quickly it took shape, only needing a few hours rather than the suggested six before they could hop into bed and snuggle down. Most found the mattress comfortable and breathable, and said they weren’t disturbed by their partners rolling over in the night.

Key specifications

SizesSingle, small double, double, king, super king, EU double, EU queen
CompositionFoam and spring
FirmnessMedium firm
Depth 28cm
Free trial200 nights
Guarantee10 years
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REM-Fit 400 Hybrid Mattress

UK Approved(Esquire,Red,HB,GH,Country Living,Prima)
400 Hybrid Mattress

Pros

  • Comfortable and supportive
  • Effective temperature regulation

Cons

  • On the firmer side, which might not be to everyone’s tastes

Score: 85/100

With a combination of pocket springs and memory foam, this mattress was brilliant at minimising any movement in the back, ensuring an undisturbed sleep for you and your partner.

While most panellists were pleased with the delivery service, some had to move the rolled-up mattress into the bedroom on their own – a tricky task due to its 35.8kg weight. Once in place though, the mattress was easy to unpack and quickly inflated to the right height.

Key specifications

SizesSmall single, single, long small single, EU single, small double, double, EU double, king, EU king, super king
CompositionFoam and spring
FirmnessMedium firm
Depth 22cm
Free trial200 nights
Guarantee15 years

Simba Hybrid Ultra

UK Approved(Esquire,Red,HB,GH,Country Living,Prima)
Hybrid Ultra

Pros

  • Minimal motion transfer
  • Excellent quality 

Cons

  • 34cm depth means you might need to buy new sheets 

Score: 85/100

This deep hybrid mattress boasts 7,300 springs and 11 different layers, including foam and cooling bamboo. All panellists were pleased with the delivery service, but once unboxed, one reported a strong ‘new’ smell that took a while to dissipate.

Everyone rated it highly for comfort though and found the ‘cool touch Stratos tech’ used in the breathable top cover effective at keeping them the right temperature overnight. That meant everyone would recommend this one to friends and family.

Key specifications

SizesSingle, double, king, super king
CompositionFoam and spring
FirmnessMedium firm
Depth 34cm
Free trial200 nights
Guarantee10 years
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best mattresses in a box

How and why are mattresses in a box made?

The mattresses are rolled and vacuum packed to squeeze into their boxes, which typically measure 50 x 50 x 110cm. Their smaller size means delivery and packaging costs for the manufacturer are cheaper, and more can be squeezed into transit vans, lowering their carbon footprint. These cost savings are passed onto the consumer, making mattresses in a box slightly more affordable than their counterparts.

As they arrive boxed, they're also easier to manoeuvre around your home. The boxes are still quite hefty (typically weighing from 20kg up 50kg), but the delivery teams should do all the hard work for you.

After all, new mattresses should be a dream, not a nightmare.


How does a mattress in a box work?

Start by moving the box into the room where your mattress will be based. Unbox it on its side – avoid using any sharp objects to open the packaging as you run the risk of slicing your new mattress.

Next, position the rolled-up mattress on any solid or slatted bed base and remove the outer layer of plastic wrap. Then, unwrap and unfold the mattress before tearing away the inner plastic. It should then begin expanding and taking shape (and no, it won’t fit back inside the box once opened).

The mattress may take up to an hour to fully expand and a few days to fully firm up. Note that it's normal for the mattress to have a slight chemical odour when it's first opened, but this tends to dissipate after time.

Once the mattress is fully expanded, you can go ahead and add extras like the best mattress protector to keep it safe from spills or stains, as well as the best bed sheets and duvet covers so you’re ready for a great night’s sleep.


Our verdict on mattresses in a box

Mattresses in a box take all the fuss out of delivery and set-up and we love the Emma Hybrid Thermosync Mattress, which has a supportive combination of foam and spring. The delivery service was fantastic, and our panellists said the mattress was easy to unpack and position on their beds.

If you’re a hot sleeper though, we recommend opting for the Origin Hybrid Pro Mattress, which comes with a cooling Tencel cover that our testers raved about.

Or if you're shopping on a budget, the REM-Fit Hyrbid Pocket 1000 Mattress is a solid pick.


Why you should trust the Good Housekeeping Institute

The Good Housekeeping Institute has been testing household products for 100 years, developing rigorous testing protocols to ensure we recommend only the very best innovations on the market.

Megan Geall, our homes writer, was part of the team who worked on this year's Sleep Awards, which involved testing nearly 300 products, including mattresses, toppers, pillows, sleep tech and more. As well as researching the latest launches to include, she took part in panel testing, and helped to analyse and write up many of the reviews.

Blossom Boothroyd, our homes testing manager, has reviewed thousands of homes products, including hundreds of mattresses, and is responsible for pulling all our panel and lab results together, so she knows exactly what to look for when it comes to the best buys for your bedroom.

Headshot of Megan Geall
Megan Geall
Senior Homes and Lifestyle Writer

Megan is the Good Housekeeping Institute’s senior homes and lifestyle writer. She loves diving into the latest product releases to find the very best buys on the market and has written hundreds of product reviews on everything from the best vacuum cleaners and coffee machines to the best ice cream makers and robot window cleaners.

When she’s not writing about the newest gadgets and gizmos for your home and garden, you’ll find her running every distance from 5km to 100km or relaxing at home with her cat – there really is no in between. 

Megan has an MA in Magazine Journalism and has previously written for Stylist, Glamour, Women's Health, TimeOut, SquareMeal, and YOU magazine. You can find Megan on Instagram @meganlouisegeall.

Headshot of Blossom Boothroyd
Tested byBlossom Boothroyd
Homes Testing Manager

Blossom is passionate about finding the best home products and appliances for GH readers. As head of the homes testing team, she has led reviews across multiple categories, from pizza ovens, and smart plugs to portable fans and hobs. She enjoys delving into the intricacies of products and refining testing protocols to ensure we’re testing them against their claims. Her aim is to find the top-performing products on the market, to help take the hard work out of housework. Blossom’s most notable accomplishment in the lab has been toasting 528 slices of bread in her quest to find the best toasters money can buy. In her free time, she openly admits to being a music geek and indulges her creative side through crocheting, baking, singing and writing.  

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