10 Best Value King Size Mattresses in The UK

Last updated on 22/05/2025

Advertising disclosure

Inofia Sleep King Size Mattress Memory Foam 5FT, 11 Inch Hybrid Sprung Mattress with Fire Resistant, Responsive Zoned Support & Motion Isolated,100 Night Home Trial, LUXE Collection

33% Off

Why We Love It

Ensures restful, temperature-controlled sleep.
Provides spinal alignment relief.
Offers risk-free trial.

Main Highlights

IDEAL SLEEP EXPERIENCE: A UniComfort memory foam sprung mattress is combine with Barrel-type spring and exclusive SMTE Fabric, while providing a Ultimate support and keeping a constant temperature for the body. Inofia LUXE Collection mattress provides a healthy and responsive bounce to keep you sound asleep all night
HIGH-RESILIENCE & PRESSURE RELIEF: Specially designed the Memory Foam combine with support foams to cushion your pressure points, while meeting the support of the body for a side sleeper, less pain, more comfort, better sleep. Inofia Memory Foam Mattress helps align your spine and conforms to your body to relieve pressure
INDIVIDUALLY WRAPPED COILS: Inofia memory foam king mattress contains the premium pocket sprung, which adds a little lift, support, and airflow to your dream sleep. And stay asleep with individually-wrapped coils which help minimize motion transfer. The durable Spring Mattress base is engineered to prevent sinking and sagging while supporting your whole body
BREATHABLE SLEEP SURFACE: The knitted top layer makes the skin feel cool and comfortable at the moment of contact while drawing moisture away for the body. This means when you sleep on Inofia mattress in a wet night, you won't be bothered by the sweat
ALL FOR YOUR SATISFACTION: We offer a 100-night home sleep trial, if you are not 100% satisfied with our memory foam spring mattress, please let us know and Inofia online service will solve your problem within 24 hours
NEED ATTENTION: Your body has formed a memory of your old mattress. Based on this, you may have your preferences and standards of mattress firmness but this is not the international standard. A new mattress may feel different in firmness. So it takes four weeks for your body to form new memories and adapt

TeQsli 5FT King Mattress, 10.6 Inch Gel Memory Foam Pocket Sprung Hybrid King Mattress 7 Zone Orthopedic for Pressure & Back Pain Relief Medium Firm Box 150x200x27cm

23% OffFree Shipping

Why We Love It

Advanced cooling gel technology.
Minimal motion transfer support.
Eco-friendly and safe materials.

Main Highlights

💤【TeQsli Upgraded 27cm King Mattress】: The newly upgraded TeQsli 27cm hybrid mattress features advanced CoolFeeling gel memory foam, bringing refreshing coolness to your sleep environment. The specially thickened Wave-Fit memory foam contours closely to your body's curves, relieving fatigue and pressure. Plus, you won't feel the metal springs when you lie down. Designed with 7 ergonomic zones, the individually wrapped pocket springs provide targeted support for every part of your body, helping to prevent spinal discomfort. Love the perfect blend of foam and springs? Don't wait—choose TeQsli now and enjoy a superior sleep experience!
🥇【Motion Isolation & Enhanced Edge Support】: Individually wrapped pocket springs function independently, minimizing motion transfer. When sharing the bed with your partner, you won't be disturbed by their nighttime movements. This 5ft king mattress is ideal for light sleepers, ensuring deep, uninterrupted rest. Designed with double rows of specially reinforced coils, the strengthened edges of this pocket spring mattress help prevent sagging caused by insufficient support.
🌿【Eco-Friendly & Healthy Sleep】: The TeQsli orthopaedic mattress is certified by CertiPUR-US and OEKO-TEX STANDARD 100, ensuring it is free from harmful substances like heavy metals and formaldehyde. The antibacterial and dust-mite-resistant fabric provides extra protection, making it an ideal choice for those with sensitive skin or allergies. Choose this medium firm hybrid mattress, combining memory foam and pocket springs, for a peaceful, healthy sleep.
💖【100-Night Trial & 10-Year Support】: Everyone has different preferences when it comes to mattress firmness—what feels firm to one person may feel soft to another. It takes time to adjust to a new mattress. To ensure your comfort, we offer a 100-night trial and 10-year support for this 150x200cm king mattress. If it's not the right fit for you, just let us know, and we'll do our best to resolve the issue.
📦【Mattress in a Box】: Our memory foam pocket spring orthopedic mattresses are compressed, vacuum-sealed, and neatly rolled in cartons for easy transport and smooth passage through narrow doorways. Due to the metal springs inside, the king mattress is quite heavy, so we recommend having two people carry it. After unpacking, the mattress inflates within 10 seconds. Please allow 24-72 hours for the 5ft mattress to fully expand to its full size. (Note: The mattress expands quickly, so be sure to keep a safe distance during the process). It's compatible with most bed frames, including box springs, slatted beds, and floor beds.

Inofia King Size Mattress, 10.6 Inch Hybrid Mattress with Aeroshield Memory Foam and NexusArc Pocket Sprung,Cozy and Breathable Fabric,The Elegant Collection,King(150×200×27cm)

44% OffFree Shipping

Why We Love It

Vintage style, never outdated.
Innovative, movement-absorbing memory foam.
Exceptional spinal and back support.

Main Highlights

Discover the Mattress for Quick Slumber---Our king size bed mattress with Aeroshield foam balances softness and elasticity,easing pressure while resisting sagging with high - density support. It boosting your average fall asleep speed by 20% and adding 30 minutes to deep sleep.
Discover the Mattress for an Airy Breath--Indulge in dreamy sleep on mattress king. Its hypoallergenic, anti - mite memory foam cover with moisture - wicking fibers quickly absorbs sweat. The side - paneled airy mesh boosts breathability, ensuring dry, cozy nights even in humidity.Say goodbye to sticky, sleepless nights.
Discover the Mattress with 7-Zone Support Sprung--With 7-Zoned Coil Support, dynamic NexusArc corecoil springs offer tailored lumbar, hip, and shoulder support. Individually wrapped pocket springs ensure less motion transfer.This mattress is your key to cozy dreams, enabling you to sleep like royalty every night.
Discover the Mattress that Offers a Side Hug--No more fear of rolling out of bed! Whether you're sitting up or sharing with a fidgety partner, our mattress's sturdy edges ensure stability. Enjoy every inch of the mattress space without limits. It wraps around you snugly, offering ultimate security.
Discover the Mattress with Sweet Tips--“Please break in with me for 4 weeks, and let me breathe for 24-72 hours before you start using me, If we're not a perfect match, feel free to send me back ”According to the survey by Inofia sleep association, it usually takes about 4 weeks to adapt to new things(just like the breakup adjustment period). Your new Inofia mattress is no exception.

Vesgantti King Size Mattress, 10.3 Inch Hybrid Mattress 5FT with Breathable Foam and Individually Pocket Spring - Medium Firm, Classic Box Top Collection(150x200x26cm)

36% Off

Why We Love It

Supports seven body pressure points.
Promotes dry, comfortable sleep.
Ultra quiet shock-absorption.

Main Highlights

ERGONOMIC 7-ZONE SPRING SYSTEM: Vesgantti king size mattress features a precisely engineered 7-zone spring system. Each zone is designed to target different areas of the body, providing optimal support for the head, shoulder, waist, hip, knee, leg, and feet. This zoning technology adapts to your body's natural curves, reducing pressure points and ensuring a more comfortable sleep experience
PROFESSIONALLY ENGINEERED SUPPORT: Advanced individual pocket spring system minimizes motion transfer while providing targeted spinal alignment support for all sleep positions. Whether you sleep on your back, side, or stomach, you'll receive just the right amount of support, will bid farewell to back pain, and enjoy deep sleep. The reinforced edges provide extra stability, preventing the mattress from losing its shape when you sit or lie near the edges
LUXURIOUS COMFORT LAYERS: The mattress surface is made of soft and skin-friendly fabric, combined with multiple layers of premium foam filling. It achieves a perfect balance between softness and support, offering a comfortable touch and excellent breathability. You'll stay dry and comfortable throughout the night, feeling as if you're sleeping on a cloud
BUY WITH CONFIDENCE: Vesgantti mattress is crafted with materials that have been rigorously certified by both CertiPUR-US & OEKO-TEX, ensuring that they are free from harmful substances. Backed by a 100-night trial & 10-year warranty, we stand firmly behind the quality of our mattress. The long-term warranty is a testament to our confidence in its durability and performance. If you have any questions during use, please feel free to let us know
MATTRESS IN A BOX: The hybrid mattress is vacuum-sealed and compressed, then placed in a compact cardboard box for easy transportation and handling. It will inflate after unpacking and reach 90% of its size in a few hours, but please allow 24-72 hours for it to fully expand

Hiepunos King Size Mattress,10.2 INCH Hybrid Memory Foam and Individually Pocket Spring,5FT King Mattress Medium Firm,Ergonomic Pressure Reducing,Improve Sleeping (150x200x26cm)

23% OffFree Shipping

Why We Love It

Comfortable and breathable fabric.
Excellent support and pressure relief.
Effective motion isolation feature.

Main Highlights

【Comfortable and Breathable Fabric】The king size mattress is made of 3D knitted fabric, comfortable and breathable, glass fibre free, suitable for more different types of sleepers, providing you with a healthy and restful sleep.
【Individually Wrapped Coil Springs】King mattress size is 150x200x26cm; The hybrid mattress uses individually wrapped coil springs with excellent support to relieve the body's 7 pressure points (feet, legs, hips, waist, shoulders, neck, head) can be a good link pressure.
【Motion Isolation Ultra Quiet】Independent pocketed springs have excellent shock absorption and resilience, which can effectively absorb the noise and vibration caused by tossing and turning. Do not be woken up by noise, do not disturb your companions, so that you have a good quality of sleep.
【Mattress in a Box】 For your convenience, the Hiepunos mattress comes in a compressed coil, so you can easily move it and install it in your room. Our mattresses are suitable for children's beds, bunk beds, spare rooms, guest beds, lofts, flats.
【Gentle Reminder】Due to the long transportation time, after opening the package, leave it for 72 hours. Rolling and jumping during this period will help the mattress recover to its original state. Please wait patiently for the recovery process~

dosleeps 9.4 Inch King Size Mattress 5FT 9-Zone Pocket Sprung Mattress with Memory Foam and Tencel Fabric - Orthopaedic Mattress - Thickness: 9.4 Inch,White

19% Off

Why We Love It

Promotes quality, undisturbed sleep.
Exceptional cooling and dryness.
Includes 90-day money-back guarantee.

Main Highlights

★【A GOOD NIGHT SLEEP】With an innovative 9 Zone Support System constructed by individual spring coil pockets. each spring coil is made of tempered stainless steel wire into a bucket shape. Compressed and sealed in a fabric pocket to reduce noise of spring coil collision. It can eliminates pressure points, motion disturbance and lower back pain, this is the best mattress you will find for an incredible night's sleep!
★【Tencel Surface】The smooth fiber surface of TENCEL Lyocell fibers absorbs moisture more efficiently. This supports the body’s natural thermal regulating mechanism, keeping your skin feeling pleasantly cool and dry throughout the day and night. Fabrics can also be engineered to provide warm and dry sensations on the skin.
★【SUPPORTIVE + UNDISTURBED SLEEP】Each Seperate Pocketed Coil is Individually & Independently Wrapped to Provide an Individualized Comfort Support System by Contouring each Person's Body Perfectly. It Also Doesn't Transfer Motion, for a Peaceful Undisturbed Sleep Even if Your Partner Moves at Night.
★【EXTRA MEMORY FOAM】In addition to individual pocket spring coil, the memory foam on top of the mattress provide extra comfort feeling by reduce up to 87% of pressure on neck, spine and hip area. The foam can absorb the pressure and reduce the body turn during sleep and give you a good sleep quality.
★【100-NIGHT SLEEP TRIAL】 Experience the mattress during your trial period to ensure it meets your sleep preferences

Vesgantti 5FT King Size Mattress, 10.6 Inch Pocket Sprung Mattress King Size with Breathable Foam and Individually Pocket Spring - Medium, Upgraded Pillow Top Collection

32% Off

Why We Love It

Contours perfectly to your body.
Offers zoned support comfortably.
Comes with 100-Nights Trial.

Main Highlights

【27cm Pillow Top Mattress】- Swirled button-tufted mattress cover with 2.5cm Egg-Shaped Foam perfectly contours to your body, absorbs noise and vibration, allows for superior airflow and distributes body heat away for ultimate restfulness
【Medium to Firm Mattress】- Vesgantti pillow top mattress is made in China and fully compliant with CertiPUR-US certification. With multiple foam layers and hundreds of individual pocket springs, this hybrid mattress is soft enough to be comfortable yet firm enough to be supportive, ideal for side, back and stomach sleepers
【Excellent Combination 】- High-density memory foam layers encourage air circulation, and pocket springs provide zoned support. The independent retraction performance conforms to the body weight curve, offering you a comfortable sleeping experience
【Mattress-in-a-Box】- For your convenience, Vesgantti mattress is compressed rolled, and you can easily move it and set it up in your room. Our mattress is suited for kids beds, bunk beds, spare rooms, guest beds, lofts, apartments
【100-Nights Trial】- Sleep preferences vary from person to person, so we recommend that you sleep on our vesgantti mattress for a period of time to determine if the mattress is suitable for you. The mattress comes with a 100-Nights Trial and a 10-Year warranty. Just take your time, relax, and enjoy your sleep with Vesgantti

Inofia Sleep King Size Mattresses Memory Foam Sprung 5FT, 10.3 Inch Hybrid Mattress with Zone Support Memory Foam & Cooler Knitted Fabric, Medium Firm Original Collection, 100 Night Home Trial

39% OffFree Shipping

Why We Love It

In-depth personalized support.
Temperature-regulating surface.
Risks-free 100-night trial.

Main Highlights

How about Inofia Original Series Mattress: This is a hybrid mattress combines of multi-layer memory foam and thousands of pocket springs, which designed based on years of sales and research by Inofia R&D. We have provided a comfortable sleep to tens of thousands of people in the UK. Our only concern is that Inofia dreamy mattress will make you miss the alarm clock the next day
Minimal Motion Transfer: Each pocketed spring can respond independently to different parts of your body for providing personalized support. While reduce motion transfer on the mattress surface, creating a stable and noiseless sleep environment for your partner
Low-Resilience & Pressure Relief: Inofia king mattress Memory foam is certified by EuroPUR and CertiPUR-US, which has Low-Resilience to hug your body and cater to your body's curves, providing a personalized sleep experience and reducing stress for a new day
Edge-to-Edge Support: Premium high-gauge Reinforce coils for superior edge support, reducing roll-off when you sit on the mattress edge. Our king bed mattress without sinking over time and help you get in and out of bed easily
Temperature-Regulating Surface: Our SmartAir knitted fabric is infused with Pure Cool material and certified by BS7177, it is fire regs compliant and fireproof. Unique cool-to-the-touch of memory foam king mattresses that keeps you at the ideal temperature and delivers a soothing sensation
Warm Tips about Your New Sleep: 1. Please wait for 48 to 72 hours for the mattress to fully recover before using it. 2. It takes 2-4 weeks for your body to adjust to a new mattress. 3. Please turn the mattress regularly, we recommend adjusting your King mattress the head and tail direction every 2 months

Vesgantti King Size Mattress, 20CM Gel Memory Foam King Mattress for Cool Sleep & Pressure Relief - Medium, 150x200x20CM, CertiPUR-US Certified

Free Shipping

Why We Love It

Cooling gel memory foam.
Healthy and safe materials.
Removable, washable cover included.

Main Highlights

MEMORY FOAM MATTRESS: Vesgantti 20cm memory foam mattress features a 2-layer design that includes 4cm cooling gel memory foam and 16cm supportive base foam. The foam on top is a gel-infused memory foam that can effectively relieve your body pressure, and give you a cooling and cloud-like sleep experience; The high density base foam gives your body perfect support from head to toe and resists sagging
HEALTHY & SKIN-FRIENDLY MATTRESS: The foam we use for this king mattress are certified by CertiPUR-US, ensuring that they are free from harmful substances. You can rest assured to use this vesgantti mattress in order to pursue a healthy sleep
BREATHABLE & REMOVABLE COVER: The top layer of our memory foam mattress is a knitted fabric cover that is skin-friendly and comfortable for an ideal sleeping environment. The breathable cover of this foam mattress provides you with a clean and comfortable surface. Coming with the smooth zipper, the cover of this mattress can be quickly removed for easy washing
MATTRESS-IN-A-BOX: Vesgantti mattress is compressed rolled, and you can easily move it and set it up in your room. It will inflate right after unpacking, but please allow 24-72 hours for it to fully expand. (Any memory foam will expand faster in a warmer room. In cold temperatures, your mattress may take a bit longer to return to full size)
SUPPORT & SERVICE: We are confident in the quality and durability of our mattress. That's why we offer 100-night-trial and 10-year-warranty. If you are not satisfied for any reason, please do not hesitate to let us know

Doubleslee Memory Foam Mattress, 5FT King Mattress, Medium Firm Feel, Soft Skin-friendly Durable, Sleep Cooler and Back Pain Relief, in a Box(150x200x20cm)

Free Shipping

Why We Love It

Reduces pressure points effectively.
Breathable hypoallergenic fabric ensures comfort.
Compact, easy transportation packaging.

Main Highlights

💖【4CM Gel Memory Foam Layer】The Doubleslee memory mattress is designed with a dual-layer, all-foam system with a very gentle and considerate gel memory foam layer. This layer can be personalized to mold to your body and contours, thus reducing pressure points on your body and giving you the sensation of floating on air. This special design relieves fatigue and stress, leaving you feeling relaxed and at ease, which in turn leads to a higher quality sleep experience.
💖【16CM High Density Foam Support Layer】The high-density foam support layer utilizes a tightly woven high-density material to serve as a solid and reliable bedrock for the mattress, providing you with even support. It also has excellent breathability and shock absorption properties to help regulate the temperature and humidity of the mattress for a more comfortable and restful sleeping experience.
💖【Durability】The Doubleslee memory foam mattress has been carefully designed and manufactured to ensure superior durability and long life. Even if you use the mattress in bed a thousand times, the mattress will not be damaged and it will still retain its original shape and supportive properties. We are very confident in our promise that if you find a problem with your mattress during use, such as it being stepped on and collapsed, we will provide you with a free replacement service. This way, you can enjoy a comfortable sleeping experience without any worries.
💖【Breathable Hypoallergenic Mattress】 The king memory foam mattress is made of hypoallergenic fabric with breathable holes, which does not contain any harmful substances and meets major industry standards, giving you a comfortable, breathable, healthy and cool sleeping experience.
💖【Convenient Packaging】 The king mattress memory foam is vacuum-sealed and compressed then placed in a compact cardboard box for easy transportation and access. After opening the box, please allow 48-72 hours for the mattress to fully expand. This treatment is designed to increase the durability and comfort of the mattress so that you can enjoy a quality sleep experience sooner.

8.9

Excellent

We scanned 657 products

We reviewed these offers relevant to the Value King Size Mattresses within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Inofia Sleep, TeQsli, Inofia, Vesgantti, Hiepunos, dosleeps, Doubleslee, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Value King Size Mattresses in the market, we considered we took a deep dive into 3286 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Inofia Sleep King Size Mattress Memory Foam 5FT, 11 Inch Hybrid Sprung Mattress with Fire Resistant, Responsive Zoned Support & Motion Isolated,100 Night Home Trial, LUXE Collection. We love many things about this product by Inofia Sleep. What sets it apart from the competition is Ensures restful, temperature-controlled sleep, Provides spinal alignment relief, Offers risk-free trial.
The best value product for most shoppers and where user satisfaction is continuously the highest is TeQsli 5FT King Mattress, 10.6 Inch Gel Memory Foam Pocket Sprung Hybrid King Mattress 7 Zone Orthopedic for Pressure & Back Pain Relief Medium Firm Box 150x200x27cm by TeQsli based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Value King Size Mattresses and the best cost-to-value ratio is Inofia King Size Mattress, 10.6 Inch Hybrid Mattress with Aeroshield Memory Foam and NexusArc Pocket Sprung,Cozy and Breathable Fabric,The Elegant Collection,King(150×200×27cm)at Inofia with a 44% discount.
Our list of the best Value King Size Mattresses is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Value King Size Mattresses in The UK

Related Deals You Might Like for Value King Size Mattresses

Uliyati King Mattress, King Size Memory Foam Mattress, Breathable Mattress for Cool Sleep & Pressure Relief - Medium Mattress, 150x200x20CM, CertiPUR-US Certified

Bednew King Size Mattresses 30cm, 12 Inch Innerspring Medium Firm Mattress King Size 5FT with Pocket Spring and Breathable Foam For Cool Comfort Sleep, Hybrid Mattress (150x200x30cm)

Novilla King Size Mattresses, 8 Inch Pocket Sprung Mattresses with Breathable CertiPUR-US Foam and Skin-friendly OEKO-TEX Fabric, Medium Firm 5FT Mattress 150x200x20cm

Novilla 5FT King Size Mattress 10.2 Inch Deep Pocket Sprung Mattresses, CertiPUR-US Memory Foam Hybird Mattress, Skin-friendly Soft & Durable OEKO-TEX Fabric, Medium Firm 150x200x26cm

Hiimgo King Mattress, Memory Foam Mattress, Breathable Medium Firm, Perfect for Body Support, Durable for King(150x200x25cm)

Starlight Beds Essentials Zig Zag King Size Mattress with Springs and Memory Foam. 8 Inch Budget Mattress. Grey, Soft Firmness (150x200x20cm)

Starlight Beds Cooltouch Hybrid Kingsize Mattress – Memory Foam Mattress with Springs, Maximum Value, 20cm Deep, Plush, White,(150cm x 200cm)

Pesh King Size Mattress 5FT – 6 Inch Hybrid Mattress with Memory Foam, Individually Pocket Springs – Medium Firm Orthopedic for Back Pain Relief – Pressure Relief Bed with Breathable Comfort

OlarHike Inflatable Mattress, Air Bed with Built-in Electric Pump, King Size Blow Up Self Inflating Guest Airbed with Flocked Surface for Camping or Home Use, 203cm L x 152cm W x 46cm H(Black)

eXtreme comfort ltd Cooltouch Plus Diamond Essentials Foam Free Pinna-Coil Bonnell Innerspring Maximum Value Mattress Plush Feel, White, 18cms Deep, 5ft King Size

We scanned 657 products

We concluded that: