10 Best Memory Foam Mattress In A Box in The UK

Last updated on 16/07/2025

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Twirest King Mattress, Hybrid Memory Foam and Spring Zonal Support, Decompression, Medium Firm, Soft and Breathable Cloth, Mattress-in-Box, 150x200x30cm

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Why We Love It

Innovative 7-zone support system.
Breathable and hypoallergenic materials.
Quiet design for peaceful sleep.

Main Highlights

Innovative Design: Twirest hybrid spring mattress adopts an upgraded 7-zone independent inner spring design to ensure that your weight is evenly distributed, and provides support, ensuring the night's sleep
Breathable Mattress: Crafted with premium materials, our mattress provides a healthy sleep environment. The breathable and hypoallergenic properties ensure fresh air circulation, reducing allergens and creating a comfortable sanctuary for all-night sleep
Quiet Sleep Experience: Our Twirest mattress is engineered with a quiet design that absorbs vibrations, ensuring a tranquil sleep environment. It minimizes the impact of your partner's movements, allowing both of you to sleep soundly without the annoyance of disturbances
Lightweight and Portable: Thanks to the boxed , our mattresses are very convenient to handle. But please don't worry, once the mattress is removed from its , it quickly expands to full size
Patience for Perfection: We recommend allowing 48 to 72 hours for the internal of our mattress to fully decompress and regain its optimal shape. This brief period ensures that you receive the best possible and support

Twirest Mattresses, 30cm Double Mattresses with Memory Foam and Anti-mite, Breathable, Removable Carved Cover, Mattress in a Box, Edges Support for Sleep Supportive(135x190x30cm)

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Why We Love It

Incredible space-saving packing.
Comfortable and supportive design.
Easy-to-clean removable cover.

Main Highlights

Amazing Packing Size：When you receive Twirest mattress, you may marvel at how such a small cardboard box can fit such a large mattress. Please be assured that this is normal, for ease of shipping and handling with our guests, our mattresses are compressed before being placed in the carton, which is what gives you the amazing carton size you see today
Comfortable & Supportive Mattress：Twirest mattress is made of high-end comfort knit fabric for a cozy and breathable surface. The dual-layer construction of the mattress provides you with comfortable support, with a memory foam layer that absorbs body pressure as well as heat, and a support foam layer that provides your body with adequate support without sinking
Zip-in Construction：Our foam mattresses come with zippers, and the removable fabric cover makes it easy for you to wash them regularly, keeping them clean as well as dry for a long time
Attention Please:As the mattress is compressed by a large machine, beware of the mattress bouncing back (unrivalled resilience) when you unwrap it with the included tool. Please wait 48-72 hours for the mattress to fully bounce back before using it
Comfortable and durable: Twirest mattress 30cm tall, features a 4cm gel memory foam top, a 3cm opulent soft cushioning foam and 23cm supportive base. The gel layer is skin-friendly and breathable, while the base ensures durability and comfort for a great sleep

TeQsli Gel Individually Pocket Sprung King Mattress 5FT with Soft Fabric, 10.6 Inch Hybrid Mattress King for Pressure & Back Pain Relief, Medium Firm Mattress in a Box-150x200x27cm

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Why We Love It

Pressure relief for ultimate comfort.
Enhanced edge support for durability.
Breathable materials for all-night freshness.

Main Highlights

💤【𝗣𝗿𝗲𝘀𝘀𝘂𝗿𝗲 𝗥𝗲𝗹𝗶𝗲𝗳 & 𝗠𝗼𝘁𝗶𝗼𝗻 𝗜𝘀𝗼𝗹𝗮𝘁𝗶𝗼𝗻】TeQsli 5ft king mattress is made of gel memory foam that conforms to the body's curves, effectively relieving fatigue and pressure. Besides, the gel-infused particles make the sleeping environment cooler. Individually wrapped inner springs support all parts of the body, protecting you from spinal pain. It is good at reducing motion interference, so don't hesitate, choose it now, and you will feel less disturbed by your partner who changes position at night from now on.
💠【𝗠𝗲𝗱𝗶𝘂𝗺 𝗙𝗶𝗿𝗺 & 𝗘𝗻𝗵𝗮𝗻𝗰𝗲𝗱 𝗘𝗱𝗴𝗲 𝗦𝘂𝗽𝗽𝗼𝗿𝘁】This 27cm hybrid mattress king combines the comfort of gel memory foam with the support of inner springs to provide a medium-firm feel. With dual rows of specially reinforced coils along the edge, the strengthened four edges can prevent sagging at the edge of the bed due to insufficient support. Regardless of your body type or sleep position, TeQsli firm king mattress provides you with an excellent sleeping experience.
💨【𝗖𝗼𝗺𝗳𝗼𝗿𝘁𝗮𝗯𝗹𝗲 & 𝗕𝗿𝗲𝗮𝘁𝗵𝗮𝗯𝗹𝗲】TeQsli king size mattress is so comfortable, skin-friendly and breathable with its knitted fabric that you’ll feel like sleeping on a cloud. The mattress offers superior breathability and holds you up well, so you won't feel stuffy or uncomfortable and will wake up energetic! This king bed mattress is made of CertiPUR-US certified foam, allowing you to enjoy healthy and comfortable sleep.
📦【𝗘𝗮𝘀𝘆 𝗦𝗵𝗶𝗽𝗽𝗶𝗻𝗴】The memory foam pocket sprung orthopedic mattress is compressed and vacuum-sealed, neatly rolled up in a box for a convenient delivery. It fits most frames like box springs, slatted beds and floor beds. To achieve a better sleeping experience, please allow about 24 hours for the slight odor on the packaging to dissipate and let the mattress fully expand based on the room temperature and ventilation.
💁🏻‍♂️【𝗕𝘂𝘆 𝗶𝗻 𝗖𝗼𝗻𝗳𝗶𝗱𝗲𝗻𝗰𝗲】Sleep preferences vary from person to person, so we recommend that you sleep on the king mattress for a period of time to determine if the mattress is suitable for you. Each TeQsli mattress comes with a 100-night trial. If you have any questions, TeQsli online service will assist you to solve the problem within 24 hours.

Sleremind Mattress,22cm Thickness Double Mattress with Memory Foam,Medium Firm,Soft and Gentle care Fabric for Back Pain,Enough Support,Mattress in Box,135x190x22cm

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Why We Love It

Quality sleep for healthy spine.
Wide range of stylish options.
Easy to clean zip construction.

Main Highlights

Quality Sleep:A good sleeping mattress not only removes pressure from the whole body, but also intelligently adjusts the support strength according to the sleeper's body shape and posture, dispersing the body's pressure, thus effectively preventing cervical and lumbar spine diseases and protecting the spine
A Wide Range of Styles: Selermind will endeavour to create a wide range of styles for you to choose from
Memory Foam:Sleremind is favoured for its memory function and quietness for people who are light sleepers or easily disturbed. With these options, a comfortable and healthy sleep environment can be achieved, thus improving the overall quality of life
Zip in Construction: Our foam mattress is constructed with a zip in the middle to allow the cover to be easily removed for cleaning on a regular basis
Comfort and Breathability: Our mattress cover is knitted and sculpted, which is comfortable and breathable at the same time as it is high-end and beautiful

Doubleslee Memory Foam Mattress, 4FT6 Double Mattress, Medium Firm Feel, Soft Skin-friendly Durable, Sleep Cooler and Back Pain Relief, in a Box(135x190x20cm)

13% OffFree Shipping

Why We Love It

Customizable and pressure-reducing comfort.
Superior breathability and support.
Hypoallergenic and health-safe materials.

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 memory foam double 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 memory foam double mattress 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.

Hiimgo Double Mattress for Double Bed,20cm Height,Memory Foam With Carved Knitted Cover for Pressure and Back Pain Relief, Medium Firm and Supportive Mattress(135 * 190 * 20cm)

14% OffFree Shipping

Why We Love It

Comfortable support for restful sleep.
Easy to clean and maintain.
Compact packaging for convenient delivery.

Main Highlights

Mattress construction: Hiimgo 20CM mattress is constructed with 16CM support foam and 4CM memory foam
Pacakge of mattress: the mattress is packed in a small cardboard box using vacuum extraction and machine compression
Release stress : our is designed with high-density foam that contours to your body's shape
Rolled in a box: the mattress is compressed and vacuum sealed and neatly rolled in a box for delivering, please wait 72 hours
Removable cover: you can pull the zip from the side to remove the cover and put it into warm water for cleaning, you can continue to use it after drying

Twirest Double Mattress, Memory Foam Mattress, Medium Firm, Breathable Knitted, Soft and Skin Friendly Cloth, Mattresses in a box (135x190x20cm)

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Why We Love It

Pressure relief for restful sleep.
Long-lasting support and durability.
Breathable design for temperature control.

Main Highlights

Pressure-Relieving : Twirest mattress is designed with high-density foam that contours to your body's shape, providing pressure-relieving . It evenly distributes your weight, reducing pressure points for a restful night's sleep
Long-Lasting: Constructed with resilient foam, our mattress is built to withstand using. Its ensures that it maintains its shape and for years, offering you consistent support and a reliable sleeping
Breathable and Thermostatic: Memory foam mattresses are designed to be breathable, which allows air to circulate smoothly and helps regulate the temperature, keeping you cooler all night long. This breathability also helps reduce moisture and s the growth of bacteria and mold
Skin-Friendly: Mattress with removable cover is made with skin-friendly materials that are gentle on your skin. The soft cover is smooth and breathable, providing a cozy feel while protecting the mattress from wear and tear
Convenient Shipping: To let transportation hassle-free, Twirest mattresses are compressed and in a compact package. Once unpacked, the mattress expands to its full size within 48-72 hours

wowttrelax Double Memory Foam Mattress 4ft6, 7 Inch Medium Firm for Back Pain Relief, with Breathable Washable Cover, 2 Layer for More Supportive, Double Bed Mattress in a box 135x190x18cm

12% OffFree Shipping

Why We Love It

Negative Ion Aerobic Fabric benefits.
GEL memory foam for comfort.
High density support and breathability.

Main Highlights

💤A GRADE STANDARD FABRIC💤 Our mattresses feature Negative Ion Aerobic Fabric, which is the vitamin in the air, the atmospheric vitamin in forest and waterfall areas, mountains and parks. Oxygen comfortable sleeping environment. It contains 18 amino acids that are beneficial to human health, protecting and nourishing the skin. Keeps the mattress surface at the ideal sleeping temperature; keeps you warm in winter and cool in summer.
💤4CM GEL MEMORY FOAM LAYER💤The Wowttrelax Memory Mattress is designed with a two-layer full foam system with a top layer of 4CM gel memory foam, the gel is known as "artificial skin" for its excellent fit and skin-friendly properties. Its gentle touch makes us feel floating on the water and naturally conforms to the contours of the body, allowing optimal relaxation for the entire body, creating a deeper, longer and sweeter sleep.
💤14CM HIGH DENSITY FOAM SUPPORT LAYER💤3D air fiber from Germany, 6-sided three-dimensional hollow technology, make the inner core more breathable. With up to 1.4 million support points per square meter, the mattress supports more evenly, aligns your spine and distributes your weight evenly, relieving pressure points while you sleep. Longer service life. Plus, sleep with your partner without being disturbed by his tossing and turning.
💤A HEALTHIER SLEEP💤Wowttrelax Mattress design combines expertise and the finest materials with advanced sleep technology. Memory foam mattresses allow your body to adjust to the most natural sleeping position and absorb 95% of your body's pressure to support your weight and prevent lower back injuries. Specifically designed for side sleeper, back sleeper, or stomach sleeper.Allows you to flexibly match various sleeping positions to achieve "Zero" restless sleep.
💤BUY WITH CONFIDENCE💤By compressing the mattress, combined with advanced rolling equipment, the volume of the mattress is reduced to a quarter of the original volume. All you need to do is open the package and wait 48-72 hours for the mattress to fully unfold. The removable and machine washable mattress cover is durable. Provide you with a 100-day trial sleep service, if you have any questions during use, please contact us, we will provide you with perfect after-sales service.

VividHues Double Mattress，20CM Memory Foam Mattress Breathable and Soft Comfortable for Pressure Relief and Back Pain Relief with Removable Carved Cover, in a Box(135x190x20cm)

5% OffFree Shipping

Why We Love It

Comfortable cloud-like sleep experience.
Breathable design keeps you cool.
Easy to clean and maintain.

Main Highlights

Dual Layer Design : This memory foam mattress features a two-layer full foam design, combining a 4CM gel memory foam layer that gently conforms to your body contours to relieve pressure points, reduce fatigue, and enhance sleep quality with a 16CM high-density foam support layer that delivers even support, breathability, and shock absorption for a stable, comfortable, and restful sleep experience.
Comfortable Sleep : The double bed mattress ensures the performance of the mattress. Its gentle touch makes you feel like you're sleeping on a cloud, and the memory foam naturally fits the contours of your body for optimal relaxation of the entire body, creating a deeper, longer, sweeter sleep.
Breathable and Thermostatic : Double mattress memory foam are designed to be breathable, which allows air to circulate smoothly and helps regulate the temperature, keeping you cooler all night long. This breathability also helps reduce moisture and s the growth of bacteria and mold.
Zip-in Construction : Double bed memory foam mattress with removable cover is made with skin-friendly materials that are gentle on your skin. The soft cover is smooth and breathable, providing a cozy feel while protecting the mattress from wear and tear. The removable fabric cover makes it easy for you to wash them regularly, keeping them clean as well as dry for a long time
Usage Instructions : The memory foam double mattresses is vacuum-sealed compressed and packaged in a compact cardboard box for easy transport and access. Please wait 48-72 hours after opening the box to allow the mattress to fully expand, this will help to improve the durability and comfort of the mattress.

PurrJoys 4FT6 Double Mattress 135x190x20cm – 8 Inch H3 Firm Cooling Gel Memory Foam Mattress with Washable Zipper Cover, CertiPUR-US® & OEKO-TEX® Certified, Pressure Relief & Easy Setup in a Box

15% OffFree Shipping

Why We Love It

Optimal support for spinal alignment.
Cooling gel prevents overheating.
Easy to clean and maintain.

Main Highlights

H3 Firm Support – Built for Back and Stomach Sleepers: Engineered with an H3 firmness level, this mattress offers enhanced support for proper spinal alignment. Ideal for those who prefer a firmer sleep surface or suffer from back discomfort.
Cooling Gel Memory Foam – No More Overheating: The top layer features gel-infused memory foam that actively regulates body temperature and promotes airflow, helping you stay cool and comfortable throughout the night.
Removable Zipper Cover – Easy to Clean & Maintain: Comes with a soft, breathable knit cover that’s fully removable and machine washable. Keep your sleeping surface fresh, hygienic, and allergy-friendly with minimal effort.
Certified Safe Materials – CertiPUR-US & OEKO-TEX Approved: Sleep with peace of mind. Our foam layers meet the highest standards for content, durability, and emissions – free from harmful substances and safe for the whole family.

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We scanned 880 products

We reviewed these offers relevant to the Memory Foam Mattress In A Box 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 Twirest, TeQsli, Sleremind, Doubleslee, Hiimgo, wowttrelax, VividHues, PurrJoys, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Memory Foam Mattress In A Box in the market, we considered we took a deep dive into 4401 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 Twirest King Mattress, Hybrid Memory Foam and Spring Zonal Support, Decompression, Medium Firm, Soft and Breathable Cloth, Mattress-in-Box, 150x200x30cm. We love many things about this product by Twirest. What sets it apart from the competition is Innovative 7-zone support system. , Breathable and hypoallergenic materials. , Quiet design for peaceful sleep. .
The best value product for most shoppers and where user satisfaction is continuously the highest is Twirest Mattresses, 30cm Double Mattresses with Memory Foam and Anti-mite, Breathable, Removable Carved Cover, Mattress in a Box, Edges Support for Sleep Supportive(135x190x30cm) by Twirest based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Memory Foam Mattress In A Box and the best cost-to-value ratio is PurrJoys 4FT6 Double Mattress 135x190x20cm – 8 Inch H3 Firm Cooling Gel Memory Foam Mattress with Washable Zipper Cover, CertiPUR-US® & OEKO-TEX® Certified, Pressure Relief & Easy Setup in a Boxat PurrJoys with a 15% discount.
Our list of the best Memory Foam Mattress In A Box 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 Memory Foam Mattress In A Box in The UK

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We scanned 880 products

We concluded that: