On the hunt for a few great mattress deals this August? It's a well-known fact that your body needs around eight hours shut eye each night in order to function at its best, and if you're quick at math, you'll have worked out that's a third of your life. So, spending a few £££s on the best mattress seems pretty fair, right? Also, if you've been struggling with the heat, you're probably after a new temperature regulating mattress (we don't blame you).
However, there's definitely no need to over-spend when purchasing a new mattress, which is where we come in to help with our best mattress deals below.
Jump to the best mattress deals by category
You can indeed put a price on a good night's sleep, but we'll make sure it's the best one around thanks to our intuitive price comparison tools and recommendations from our experts. Use the links (right) to jump to the best current mattress deals.
The best mattress deals right now
Quick links to retailer mattress deal pages
These are the best mattress deals to bag right now. They're ranked by our pick of the best mattresses, with number one, the Casper Mattress being first. If you want to find out more about any of the mattresses below, don't miss our mattress reviews – each one below has been given a rigorous testing by our expert.
Casper Mattress | 15% off using the code EVERYONESLEEPS
Casper are currently giving customers 15 per cent off their award-winning mattresses, use the code EVERYONESLEEPS at checkout to claim. What better time to grab a bargain? Also, the Casper Mattress is the best mattress you can but in the world right now, in our opinion. Deal Ends: 5th August.View Deal
Eve Mattress | 20% off when you spend £500
Fancy a huge 20 per cent off your next purchase when your basket exceeds £500? Use the code TWINKLETOES at checkout to claim. The Eve mattress is our third pick of the best mattress you can buy, and it's great for back sleepers. Deal ends: Unknown.View Deal
Leesa Mattress |Up to 30% off all mattress
Enjoy an incredible amount of money off your next purchase at Leesa. No matter the size, no matter the mattress, you'll get 30% off. The discount is already applied, too, so there's no code needed. It's worth noting that the Leesa Mattress is our top pick of the best mattress for temperature regulation. Deal ends: 5th August.View Deal
Emma Mattress| 35% off summer sale
Currently, there's 35 per cent off EVERYTHING at Emma Mattress. This means that a single mattress starts from £278.85 instead of £429 and a king size is only £454.35 down from £699. Oh, and did we mention that the Emma Mattress is the best mattress for fidgets? Deal ends: Unknown.View Deal
Dormeo S Plus | Save up to £130 at Very
Rated our pick of the sixth best mattress you can buy, the Dormeo S Plus is ideal for flexible comfort. Currently, Very has slashed the price of this mattress by £120.99, making a single size just £229 and a super king £469. Bargain! Deal ends: Unknown.View Deal
Silentnight EcoComfort Breathe 2000 | 20% off at Argos
Use the code SILENT25 for 20 per cent off this Silentnight mattress when shopping at Argos. After all, it is our pick of the best eco friendly mattress you can buy. Deal ends: Unknown.View Deal
Simba Hybrid mattress | FREE travel kit when you buy a mattress
Going on holiday soon? If you're in need of a new mattress too, why not kill two birds with one stone and buy a Simba one? When using the code TRAVEL at checkout, you'll receive a free Simba travel kit. Included is a super comfortable travel pillow which rolls up neatly into a bag for easy transportation as well as a Simba Graphene Eye Mask which is guaranteed to block out light. Deal ends: 6th August.View Deal
Nectar Mattress | Two free pillows when you purchase
For a limited time only, Nectar is giving away two free pillows worth £70 with every mattress order. And, there's no code needed, the saving will automatically be applied at checkout.With sizes to suit all beds from a single to a small double, double, king and super king; they won't just deliver your new mattress for free, but they'll also take your old one away. Also, the Nectar mattress is our best mattress for joint pain. Deal ends: Unknown.View Deal
Tweak | £150 off a Nrem customisable mattress
An ideal purchase for those who suffer from back pain, especially now there's £150 off, this is our 11th pick of the best mattress you can buy. Use the code LOVESLEEP for the discount which means you can bag a single size for £445 instead of £595 and a super king for £945 instead of £1,095. Deal ends: Unknown.
THE CHEAPEST MATTRESS DEALS RIGHT NOW
Is my new mattress the right size?
Before you buy in a rush, desperate to score that brilliant mattress deal, check you've got the size right. Here are the choices:
Single: 90cm x 190cm
Small double (often called a queen): 120cm x 190cm
Double: 135cm x 190cm
King: 150cm x 200cm
Super king: 180cm x 200cm
In the market for an affordable mattress? We've found the cheapest mattress deals out there and popped them below. Prices start at just £50! We've ranked them from low to high price just to make it easier, too.
Bedzonline 3ft Single Budget Economy Mattress | Was £58.99 now £44.99 at Amazon
Cheap yet still very much cheerful, this mattress is rated 4.3 stars by reviewers on Amazon. It's four inches deep, features a removable cover for cleaning and it's ideal for asthma and allergy sufferers as it's hypoallergenic. Our favourite part is that it moulds to your body shape. The most affordable mattress deal out there right now, we think.View Deal
Cool Blue Memory Sprung Mattress | Was from £129.99 now from £50 at Groupon
A bargain price for a new mattress at just £50 for a single size, this memory sprung mattress helps to relieve pressure points while sleeping. It features a hypoallergenic filling as well as a quilted cool-touch cover, too. And it comes vacuum-packed and rolled in a box. Perfect!View Deal
Will your mattress fit your bed frame?
Handmade Memory Foam Mattress | Was £199 now £59.99 at Groupon
A bargain price for a mattress, especially one which is memory foam and handmade, this mattress is 20cm thick, it comes in five different sizes and it's hand tufted. Our favourite part is that it has a breathable outer cover designed to absorb moisture making it ideal in the heat.
Cool Blue Hybrid Memory Foam Mattress | Was 329 now £65 at Groupon
Available in small single to king sizes, this memory foam mattress features a hypoallergenic cover as well as anti-dust and anti-mite features. It's vacuum packed, features a taped finish and it features orthopaedic qualities. View Deal
Visco Therapy Double Rolled Mattress | Was £170.99 now £68.28 at Amazon
Featuring two different layers, one memory foam and one reflex foam, this coil spring rolled mattress is 20cm thick, it features a taped edge cover and it arrives vacuum packed. Right now there's 60 per cent off, but hurry as it won't last long.View Deal
Pure Relief Memory Foam Mattress | Was from £449 now from £79 at Groupon
Available in small single to super king sizes, this memory foam mattress is 20cm deep. It also has a removable (and washable) hypoallergenic cover and the mattress is dust and mite resistant so ideal for allergy sufferers.View Deal
Silentnight Comfortable Foam Mattress | Was £149 now £93.99 at Wayfair
Available in a single, EU single, double, EU double, king and EU king, this rolled comfortable foam mattress is great for any bedroom. Made up of high density Miratex® foam for maximum support, it also comes with a five year guarantee.View Deal
Classic Gold Ortho Mattress | Was from £349.95 now from £114.95 at mattressonline
Mattress Online is currently selling this Classic Gold Ortho Mattress at 65 per cent off. It's available in 10 different sizes, and they're offering free next day delivery. A mattress deal not-to-miss.View Deal
Silentnight Ortho Dream Star Miracoil Mattress | Was from £299.95 now from £174.95 at mattressonline
The best mattress deal for those who prefer a firmer sleep surface, the Silentnight Ortho Dream Star mattress features Eco Comfort Fibres for eco-friendly comfort, and a Miracoil spring system for extra firm orthopaedic support.View Deal
Sealy Posturepedic Aspen Mattress | Was from £420.67 now from £159.95 at mattressonline
A great mattress for those after something firm which offers excellent orthopaedic support, this hand-tufted Aspen mattress has a luxurious damask cover for the best night's sleep.View Deal
Naturalex EXTRAFRESH King Size Mattress | Was £1,111.06 at Amazon now £205.99
With a whopping 81 per cent off right now, this king size mattress is 30cm thick and it's made from HR Aero Latex foam. It has a winter side and summer side, both of which help you sleep as comfy as possible throughout the night. The summer side is temperature regulating to ensure you don't overheat, and the winter side is super soft and cuddles you in.View Deal
Luna Memory 1000 Pocket Mattress | Was from £345 now from £224.95 at mattressonline
For a perfect nights sleep every night, opt for the Luna memory mattress. Made from a blend of 1,000 individual pocket springs with a Luna Fusion Cool Memory layer for enhanced support, comfort is guaranteed.View Deal
Novo Natural Pocket 1000 Mattress | Was from £368 now from £249.95 at mattressonline
With 30 per cent off and free next day delivery, this is a pretty good mattress deal. The Novo Natural Pocket mattress has been designed and crafted with comfort in mind, as it features 1,000 pocket springs and luscious natural layers of wool.View Deal
The best mattress retailer deals
Is the mattress right for you?
There are a few different types of materials used in mattresses, as well as hybrid options that include latex or gel, but the two most common types are memory foam and pocket sprung.
What about mattress firmness? Mattresses range from soft medium; medium; medium firm; to firm and extra firm.
Prefer to shop for mattress deals by retailers? We've scoured the internet and found the best mattress retailer deals on right now. Enjoy!
Mattress Online | Sleepeezee sale up to 50% off
Want to get an amazing mattress deal? Head over to Mattress Online where there is up to 50 per cent off selected Sleepeezee mattresses and free next day delivery! Deals end: 18th August.View Deal
Dreams | 20% off all Hypnos mattresses
Grab your dream bed and mattress for a bargain at Dreams right now. Be quick, the sales won't be around for long. Mattresses start from £59, beds are from £99 and sofa beds from £299. Deals end: 6th August.View Deal
Argos | 25% off Silentnight with code SILENT25
This Argos mattress sale makes life easier for those who need a new mattress or some bedding, pronto. Prices start at only £8 – protectors start at £9, pillows at £10, duvets £20, single mattresses £129 and bed frames at £169. Use the code SILENT25 at checkout to claim. Deals end: Unknown.View Deal
Silentnight | Up to 20% off mattresses
Head to Silentnight for a mattress bargain this month. Prices start at £125.10 for a single mattresses , doubles are from £161.10 and super kings are from £332.10. Deals end: Unknown.View Deal
Mattress Firm | Flashback sale save up to $400
Enjoy major discounts on America’s best-selling mattress brands from Beautyrest to Serta and Sleepy's. The best deals include a Hampton and Rhodes mattress with 50 per cent off and a Tulo mattress at 33 per cent off. Deals end: Unknown.View Deal
OTTY Sleep | 35% off ALL mattresses
This month you can get 35 per cent off mattresses on the OTTY site. Their bundles are also discounted, so you can get a single mattress, bed frame and one pillow for just £564.99 as oppose to £754.97; that's just the start. Not a bad price for a whole new bedroom, essentially. Just to make things better, they're also selling two deluxe pillows for the cheap price of £50. Deals end: Unknown.View Deal
BEST MATTRESS PRICES
Jump to the best mattress prices by size
In addition to the best mattress deals we can find at the moment, we've also included highlights of some of the best mattresses around and the cheapest prices for them. You probably already have a size in mind if you're replacing an old mattress or fitting on an existing bed frame, so we've split this article into different size guides to help you out, from a twin (aka the single in the UK) to a California king bed.
Best single or twin mattress deals
US: Twin mattress dimensions: 39-inch x 75-inch. Depth varies.
UK: Single mattress size: 90cm x 190cm approx. Depth varies.
Despite the twin name, this is the smallest mattress size found outside of baby cots and cribs. Generally used in children's rooms or in smaller living spaces like studio apartments for adults, if you're tall, it's worth noting that they're only 75 inches in length (US).
Best twin xl mattress deals
US: Twin XL mattress dimensions: 39-inch x 80-inch. Depth varies.
Rarely seen in the UK, the twin XL isn't actually that much bigger than a twin mattress: it's five inches longer but the same width. Ideal if you're limited on space or have a teenager at home who won't stop growing.
Best double or full-size mattress deals
US: Full-sized mattress dimensions: 54-inch x 75-inch. Depth varies.
UK: Double mattress size: 135cm x 190cm approx. Depth varies.
The double mattress, also known as a full-size in the US, is a good option for your first bed big enough for two. It's 54 inches wide so if you or your partner are prone to moving around much during sleep it might be worth considering something larger. Smaller apartments or guest rooms might be a better match with this size.
Best queen size mattress deals
US: Queen size mattress dimensions: 60-inch x 80-inch. Depth varies.
Not often seen in the UK, Queen mattress deals are the most in-demand of all bed sizes in the US thanks to their happy medium of decent size and low cost. Both wider and longer than the full-sized double mattresses, a queen is the one most people go for if their room can accommodate a bed of this size (at least 10ft x 10ft).
Best king size mattress deals
US: King-sized mattress dimensions: 76-inch x 80-inch. Depth varies.
UK: King-size mattress size: 152cm x 198cm approx. Depth varies.
For professional sprawlers or families with young children who like to hop in bed with their parents some nights or early mornings, as far as bedroom sizes go, you'll be needing a room measuring around 12ft x 10ft. More often than not, this is the biggest size most manufacturers do for mattresses.
Best super king or California king mattress deals
US: California king mattress dimensions: 72-inch x 84-inch. Depth varies.
UK: Super king mattress size: 180cm x 200cm
The biggest size available in the USA, the California king mattress is oddly enough actually four inches less wide than the king but four inches longer. Perfect for taller people and those with invading kids or a sleeping dog at the end of the bed.
Mattress topper deals
It's a smart idea, that if you're buying a new mattress, to also buy a topper with it. Not only does a mattress topper supplement the comfort of your mattress, but it can also add support to a mattress that may be too soft or firm for your liking.
Read our best mattress toppers guide or see below for the best ones and their cheapest prices.
Mattress protector deals
Along with your new mattress purchase, you're going to want to add a mattress protector to your basket, too. After all, there's no point in forking out lots of money on an expensive, luxury mattress if you're not going to protect it, right? A mattress protector is an item of removable bedding which simply just sits on top of your mattress to protect it from spillages or stains and also allergens and irritants like bed bugs, mould or dead skin.
Find our pick of the top 10 mattress protectors, or scroll to shop the best four and where to buy them from.