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Top five bed-in-a-box mattresses for 2017

By Ben Slater

Online mattress brands such as Casper, Eve and Leesa make bold claims about their mattresses. But which is actually the best to buy in 2017?

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Spending a few hundred pounds on a mattress that you haven’t tried out sounds risky. But our tests have revealed that some of the best mattresses money can buy are only available in vacuum-packed boxes that you order online. We’ve rounded up the top five for 2017 to help you make a decision you’ll be happy with for many years to come.

You can sleep safe in the knowledge that the mattresses we’ve recommended below will give your spine the support it needs without sagging or softening with time. The only thing we can’t tell you is whether you’ll find it comfortable.

That’s why we normally suggest you try a mattress before you buy. But that’s the beauty of the bed-in-a-box mattresses we’ve listed below. They all come with a sleep trial of several weeks, during which time you can send the mattress back for an exchange or, in many cases, a full refund.

See our full list of Best Buy mattresses.

Top five boxed mattresses to buy in 2017

Typical price £599.00
Which? score 76%
Reviewed Jun 2017
Body support overall:
4 out of 5
Stability:
4 out of 5
Durability:
5 out of 5
Type:
Member exclusive
Warmth:
Member exclusive
Weight (kg):
Member exclusive

Not only is this the best bed-in-a-box mattress we’ve seen, it’s also the most supportive mattress we’ve tested overall. Whatever your body size or favoured sleeping position, this mattress will give your spine the support it needs for years to come, without sagging or softening. If you don’t find it comfortable, you have a 60-night trial period in which you can exchange it for another mattress from the same brand.

Typical price £549.00
Which? score 74%
Reviewed Jun 2017
Body support overall:
3 out of 5
Stability:
4 out of 5
Durability:
5 out of 5
Type:
Member exclusive
Warmth:
Member exclusive
Weight (kg):
Member exclusive

This mattress gives most people great support and it can’t be beaten for durability, so even after years of use it should feel as good as new. It’s great for restless sleepers as, unlike some foam mattresses, this one doesn’t suck you in or restrict your movement at all. You can try it out for up to 100 nights before returning it for a full refund, but before you order, bear in mind that larger people who sleep on their back can get better support elsewhere.

Typical price £590.00
Which? score 73%
Reviewed Dec 2016
Body support overall:
3 out of 5
Stability:
5 out of 5
Durability:
5 out of 5
Type:
Member exclusive
Warmth:
Member exclusive
Weight (kg):
Member exclusive

This mattress is one the firmest boxed beds we’ve seen, earning a five on our firmness scale of one to ten. It provides good support for everyone, but is especially supportive if you sleep on your back. It doesn’t restrict your movement, making it easier to roll over and change sleeping position in the night, though doing so shouldn’t disturb your partner because it absorbs impact really well, too. You can try it out for up to 100 nights while still being eligible for a full refund.

Typical price £550.00
Which? score 73%
Reviewed Dec 2016
Body support overall:
3 out of 5
Stability:
5 out of 5
Durability:
5 out of 5
Type:
Member exclusive
Warmth:
Member exclusive
Weight (kg):
Member exclusive

This mattress is slightly firmer than the one above, and more stable. In other words, it absorbs bounces well, so even if you’re a light sleeper you shouldn’t be disturbed if your partner gets up in the night. It’s suitable for all sleeping positions and body sizes and will stay that way provided you rotate it regularly, which is easier said than done. The manufacturer offers a full refund during the 100-night sleep trial.

Typical price £399.00
Which? score 71%
Reviewed Jun 2017
Body support overall:
2 out of 5
Stability:
5 out of 5
Durability:
5 out of 5
Type:
Member exclusive
Warmth:
Member exclusive
Weight (kg):
Member exclusive

This bargain memory foam mattress is perfect for side-sleepers, as it will excel at keeping your spine almost parallel to the bed for years to come without sagging or softening. The memory foam absorbs your partner’s movement exceptionally well, without the common downsides of feeling very warm to lie on and not being breathable. The only two things to consider are that back-sleepers can get better support from other mattresses, and you can only make use of the 100-night sleep trial if you use a mattress protector.

Which? mattress reviews

If you’re looking for a great night’s sleep, look no further than our independent and objective mattress reviews. You can have complete confidence in our results because every mattress review we publish is based on the most rigorous lab tests.

It’s essential that your mattress gives your spine the support it needs. That’s why we test each one to see how well it will support people of different sizes, sleeping on both back and side.

After simulating up to 10 years of use by rolling a heavy barrel over the mattress thousands of times, we then repeat the body-support tests to see whether the mattress becomes less supportive over time. We also assess the mattress for any change in height or firmness, so we can tell you whether a mattress will sag or soften after a few years of use.

That’s not all. Our testing also reveals how breathable a mattress is, how easy it is to turn over on and how stable it is. Light sleepers should try and buy a mattress with five stars for stability. These are the best at absorbing bounces, so you’ll be less likely to be disturbed when your partner rolls over or gets up in the night.

If you’re not yet a Which? member and want access to all these results and more, sign up for a £1 trial now.

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