The best mattresses
Overview
Table of Contents
This content originally appeared on Mashable for a US audience and has been adapted for the UK audience.
It might seem excessive to spend hundreds or thousands of pounds on a mattress. But look at it this way: We spend nearly a third of our lives asleep, and a good night's rest (or lack thereof) can make or break your day. If you wake up feeling energised and refreshed, concentrating and functioning will be a breeze. On the other hand, if you spend most of your nights tossing and turning, the whole day can feel like a challenge. You’ll be fatigued, irritable, and reaching for the nearest caffeine source.
According to the Division of Sleep Medicine at Harvard Medical School, sleep deprivation might lead to chronic health problems, including diabetes, high blood pressure, heart disease, obesity, and even depression. We're not messing around when it comes to rest, so if you need to improve your quality of sleep, it might be time for you to ditch your old, unsupportive mattress for a new one that's more in tune with your sleep needs.
Luckily, buying a mattress is now easier than ever, especially with so many online companies selling state-of-the-art mattresses and delivering them straight to your door. Some even come with all the bells and whistles, like memory foam, cooling layers, and anti-wicking fabric, that'll help you rest easy and keep sleepless nights at bay. No matter what mattress type you like, you can now find it online.
But you can’t just settle on any online mattress — it has to meet your specific needs and sleep style. Whether you need to decrease joint stiffness or stay sweat-free at night, there are different mattresses to mitigate each of these issues. The sheer amount of choices can be overwhelming, so if the thought of reading one more mattress review makes you want to chuck your phone against the wall, know this: That's what we're here for. We've read the reviews, compared the models, and have come up with a stellar list.
What size bed should you get?
Don’t play Goldilocks when you’re looking to buy a mattress. If you want to keep the same size bed, take measurements of your current mattress first so you’re prepared to compare models. If a mattress has equivalent dimensions, you’ll know it’s the right fit. If not, skip it and consider your other options. You don’t want to waste time returning or exchanging.
Consider how many people will be sleeping in the bed, too. If you share a bed with a partner or with pets, the bigger the better. With a smaller mattress, you might be woken up every time your significant other rolls over or gets up to use the bathroom. A bigger mattress will ensure you both have the room you need.
Is it better to sleep on a hard or soft mattress?
Do you sleep on your back, on your side, or on your stomach? Knowing your sleeping style is key to buying an online mattress. Some mattresses are extra firm and designed for spine support, while others are made with softer materials for enhanced comfort. Above all else, you want to be super cozy while you catch up on your sleep.
What should you consider when buying a mattress online?
Speak with your doctor first before choosing an online mattress if you're concerned about any existing health issues. If you’re prone to joint pain, you’ll want to opt for a mattress that offers good body support. For overheating issues, choose a mattress with cooling technology. Concerned about your environmental impact? There are even eco-friendly mattresses to minimise your carbon footprint.
Should you consider the warranty of a mattress?
Online mattresses don’t always come cheap, so you’ll want to consider a company’s warranty before making a commitment. Look for warranties that offer flexible coverage and support so you won’t have to spend an arm and a leg for repairs and replacements.
What is the best mattress?
Whether you're all about memory foam or temperature regulation, there are many different types of mattresses out there to meet your sleeping needs. A great night's sleep is not that far away.
These are the best mattresses you can buy online in 2025.
Nectar Mattress
Best For Comfort
The Good & The Bad
- Great for most sleep positions
- Three foam layers for contouring and comfort
- Compatible with most bed types
- Forever warranty
- You’ll have to set it up yourself
Why We Like It
Wouldn’t it be nice to lie down on a cloud? The Nectar Mattress comes close to this dream with its advanced comfort features.
Three foam layers make all the cozy magic happen. An adaptive high-core memory foam layer supports your body sans sinking, a gel memory foam evenly distributes your weight, and a quilted gel memory foam increases breathability and air circulation.
Sweat can interfere with your sleep routine, but this online mattress keeps it at bay with its Tencel cooling cover. This fabric helps draw away heat and perspiration, so you can rest at the proper body temperature.
Setup is easy for any Nectar mattress. All you have to do is remove the packaging and plastic cover, let the mattress expand, and then you can use it on your bed. There’s minimal effort required on your part.
When it comes to warranties, Nectar is at the top of its game. It has a forever warranty (yes, we’re not kidding), which means that if you bought a mattress, use it, and it experiences wear and tear over time, Nectar will replace the mattress at no charge.
Details
Simba Hybrid Mattress
Best For Movers
The Good & The Bad
- Excellent support
- Cheaper than other pocket-sprung mattresses
- Warmer than other mattresses in list
- Difficult to move mattress around without handles
Why We Like It
Simba’s Hybrid mattress combines memory foam with micro pocket springs. There are five different materials used in Simba’s mattress in total.
The Simba Hybrid is one of the premier 'bed-in-a-box' options, unless you get very warm in bed – in which case you’re best off avoiding memory foam completely.
The Simba Hybrid strikes an excellent balance between comfort and support, and it doesn’t lose those postitive attributes when it gets warm or after its initial break-in period.
The mattress could do with some handles to make manoeuvring it easier. But let's focus on the good as you’ll be very hard pressed to find a more comfortable pocket-sprung mattress for the same price.
This mattress also comes with a 100-day money-back guarantee. A little peace of mind to help you drift off.
Details
Emma Original Mattress
Best For Durability
The Good & The Bad
- Very comfortable
- Handles make transportation easier
- More expensive than others
Why We Like It
OK brace yourself for the science. Conformable Next Generation Airgocell® foam adapts to any body shape thanks to its point elasticity. So that basically means that pressure distribution on the body is improved which supports adjustment, so you can sleep well in any position.
Emma has combining different materials and structures meaning this optimal pressure distribution can be achieved, which in turn creates an ideal condition for the restful sleep you have been craving.
Breathable foam allows proper ventilation thanks to its open pores, meaning this mattress is a great option if you are prone to over-heating and sweating. In addition, a cover with climate control fibre provides for particularly fast moisture removal ensures a completely pleasant sleeping climate — what more could you ask for?
Details
Eve Original Mattress
Best For Pain
The Good & The Bad
- Good for pain issues
- Three layers of foam keep the pressure off
- Crafted in UK-based factory
- Has had issues with over-heating in the past
Why We Like It
The Eve Original Mattress has a slightly firmer feel meaning sinkage is slowed, and quick sinkage can lead to discomfort. The top layer of memory foam really hugs the sleeper, providing great support and pressure relief.
So there is still sinkage, as you would want with a top layer of memory foam, but with the Eve you lie down and notice more of a gradually increasing level of sinkage — soothing you into a sleepy haze.
Eve’s level of support is where it stands apart from others in the field. Whatever your sleep preference, you shouldn't have much trouble getting to sleep as the Eve offers support to side, stomach, and back sleepers equally. The pressure relieving qualities of this mattress allow you to be flexible with your sleeping style and not feel trapped.
You can get your mattress when it suits you with flexible delivery slots. And you get 100 nights to see if you really like it, with hassle-free returns from your room if you don't. Eve go the extra mile so ensure you get a product you like.
Details
Tempur One
Best For Versatility
The Good & The Bad
- Unrivaled cooling layers
- Great customer service
- Extra memory foam layers included
- Protective cover was bothersome for some reviewers
Why We Like It
More than basic memory foam, this mattress gives you superior comfort and fully responsive body support.
You get the choice of three feels (soft, medium, and firm), so you should be able to find your perfect mattress for true restful sleep. Plus, it's super easy to maintain — engineered to be 'no turn' and including helpful removable covers.
Details
Joseph Green is the Global Shopping Editor for Mashable. He covers VPNs, headphones, fitness gear, dating sites, streaming, and shopping events like Black Friday and Prime Day.
Joseph is also Executive Editor of Mashable's sister site, AskMen.
Dylan Haas is a Lead Shopping Reporter for Mashable, where he covers all things gaming, laptops, fitness, and shopping events like Black Friday and Prime Day. Before joining the team at Mashable, Dylan received a B.A. in Communications from Pace University and contributed to publications like Paste Magazine, Bandsintown, and others following a brief stint as a marketing and management assistant in the music industry.
