10 Best Thickest Memory Foam Mattress Topper in The UK

Last updated on 03/08/2025
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Best Choice
1
9.8
Exceptional
Vesgantti 3 Inch Memory Foam Mattress Topper King Size, Gel & Bamboo Charcoal Infused Bed Topper for Cooling Sleep & Pressure Relieving, with Washable Cover-150 x 200 x 7.5CM
Vesgantti
Vesgantti 3 Inch Memory Foam Mattress Topper King Size, Gel & Bamboo Charcoal Infused Bed Topper for Cooling Sleep & Pressure Relieving, with Washable Cover-150 x 200 x 7.5CM
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Why We Love It
  • Keeps cool with ventilated design.
  • Offers superior support and comfort.
  • Conveniently washable and non-slip cover.
Main Highlights
  • 【Dual-Layer & Ventilated Design】This 3 inch mattress topper features a 2-Layer design that includes 2”gel infused memory foam and 1” bamboo charcoal infused memory foam. Cooling gel foam can help to prevent overheating and maintain a cooler temperature than ordinary memory foam; Bamboo charcoal foam can help to absorb moisture and eliminate odors. The whole mattress topper is crafted with breathable open-cell ventilation design
  • 【Superior Support & Comfort】 High-density memory foam can conform to your curves and distribute weight evenly to align the spine and alleviate pressure points. It provides ideal air circulation and helps to eliminate motion transfer, ensuring you fall asleep easily and stay asleep throughout the night
  • 【Non-slip & Washable Cover】 The breathable cover adopts skin-friendly knitted fabric that combines silky smoothness with exceptional breathability. The easily removable cover is machine washable, which means you can keep it clean and the topper will last longer to some extent, eliminating the need to frequent disposal of the mattress topper and causing waste. It has four corner elastic straps design which help keep the mattress topper from sliding
  • 【Affordable & Multi-use】 A good mattress topper can make your old mattress refreshed. Replacing quality mattresses can be expensive, but a mattress topper is affordable and able to add a further layer of optimal support to your mattress. Suitable for sofa bed, guest bed, caravan, college dorms, Tatami, camping and more.The memory foam topper comes in 2, 3, 4-inch profiles so you can select your favorite height that suits your preferred firmness
  • 【Instructions & Service】 Vacuum sealed and neatly rolled in a box. Smaller size, easy to carry, inflate in 10 seconds after unpacking, please allow up to 24-48 hours to fully expand ( Please note: Once you unwrap the topper, it will expand to its original size and cannot be rolled back again) Vesgantti offers you a 100 night trial and is dedicated to ensuring excellent customer service
9.8
Exceptional
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Best Value
2
9.7
Exceptional
Save 17%
Frideko 4FT6 Double Memory Foam Mattress Topper, 4.33 Inch Mattress Topper Double Bed With High-Density Foam, Washable & Removable Zipped Cover, Pain Relief, White
FRIDEKO HOME
Frideko 4FT6 Double Memory Foam Mattress Topper, 4.33 Inch Mattress Topper Double Bed With High-Density Foam, Washable & Removable Zipped Cover, Pain Relief, White
17% OffFree Shipping
Why We Love It
  • Enhances mattress longevity and comfort.
  • Comprises washable, breathable cover.
  • Delivered conveniently vacuum-packed.
Main Highlights
  • THREE LAYERS OF FRIDEKO FOAM: The Frideko memory foam mattress topper combines comfort and support. This three-layer system makes the mattress topper both soft and supportive, helping to create a mattress topper suitable for supine, side, prone and mixed sleepers.
  • GENEROUS THICKNESS: This mattress topper is thicker than most regular topper offered by others, instantly enhancing the comfort of any mattress. It provides you with a truly comfortable sleeping surface on a mattress that is too firm. The 4.33 inch thick is enough to provide good pressure relief.
  • BREATHABLE AND WASHABLE COVER: Breathable, skin-friendly mattress protector keeps dust out of sight, while keeping your summer mattress topper cool and the winter comfortable. The mattress protector comes with a zip on the side for easy removal and machine washing to keep your mattress topper clean.
  • MULTIPLE USES: Whether it's a mattress topper or a bed spring, guest bed, caravan or sofa, it's the perfect choice. The mattress topper is compressed and rolled in a box for easy access.
  • VACUUM ROLL-UP PACKED: This memory foam mattress topper comes rolled up and vacuum packed for your convenience. When you receive your mattress topper, please allow 42-72 hours to ensure it fully expands to its original height.
9.7
Exceptional
Save 17%
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3
9.5
Superb
Save 6%
Memory Foam Mattress Topper Double Bed (7cm Thick) Premium Topper for Comfort & Support, Back & Joint Pain Relief, Cooling Dual-Layer Orthopedic Pad.
Victoria & Carter
Memory Foam Mattress Topper Double Bed (7cm Thick) Premium Topper for Comfort & Support, Back & Joint Pain Relief, Cooling Dual-Layer Orthopedic Pad.
6% OffFree Shipping
Why We Love It
  • Ultimate comfort and support.
  • Alleviates back and joint pain.
  • Stay cool and comfortable.
Main Highlights
  • ULTIMATE COMFORT & SUPPORT Our 7cm thick memory foam mattress topper provides enhanced comfort and superior support for a restful night's sleep.
  • PRESSURE RELIEF FOR BACK & JOINT PAIN Specially designed to alleviate back and joint pain, our orthopedic mattress pad ensures you wake up refreshed and pain-free.
  • COOLING TECHNOLOGY Stay cool and comfortable throughout the night with our dual-layered cooling luxury topper, perfect for all seasons.
  • REMOVABLE WASHABLE COVER WITH FIXING STRAPS Features a hypoallergenic, eco-friendly Bamboo Viscose cover that is easy to remove and fully machine washable, along with straps that hook onto the mattress to prevent slipping.
  • MULTIPLE SIZES AVAILABLE Available in Single, 4ft, Double, King, and Super King sizes to fit your bed perfectly, enhancing your existing mattress with ease.
9.5
Superb
Save 6%
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4
9.4
Superb
WOWTTRELAX Dual-Layer 2 Inch Memory Foam Mattress Topper Double Bed, Orthopedic Bed Topper with Breathable Washable Cover, Cooling soft for Back Pain (135x190x5cm)
wowttrelax
WOWTTRELAX Dual-Layer 2 Inch Memory Foam Mattress Topper Double Bed, Orthopedic Bed Topper with Breathable Washable Cover, Cooling soft for Back Pain (135x190x5cm)
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Why We Love It
  • Optimal comfort and support provided.
  • Promotes cool, pressure-free sleep.
  • Extends overall mattress lifespan.
Main Highlights
  • 【Enjoy a comfortable sleep】WOWTTRELAX Memory Foam Topper combines zero-pressure memory foam and bamboo charcoal high-density foam to provide your body with luxurious comfort and excellent support. The unique double layer foam system is designed so that if you need a firmer mattress to relieve back pain, you can simply flip the cover over to the firmer side for better support. It is super comfy and effective to relieve any lingering back pains.
  • 【2CM Zero Pressure Gel Memory Foam】The incorporation of cooling gel beads combined with the cellular structure of the memory foam efficiently helps to regulate your body temperature, this provides cool, cloud-like comfort for a good night’s sleep. Due to the characteristics of zero-pressure memory foam, slow-rebound and quick-release, no matter how the pressure you apply and your sleeping position change, it can slowly and intimately rebound to fit the body and reduce pressure.
  • 【3CM High-density Foam Support Layer】The 3CM high density foam support layer not only provides excellent support ,but is also infused with natural bamboo charcoal. Infused bamboo charcoal helps to regulate moisture, temperature and odour. Most importantly, its hypoallergenic characteristic resists bacterial growth for a clean sleep surface.
  • 【Soft Fabric Cover】Mattress Topper is encased in a skin-friendly knitted fabric cover which is safe, away from allergens, care for skin health. The bottom of the topper cover is designed with 3D anti-slip dots, which hold the topper well in place, so it does not shift too much even if you toss and turn or frequently change sleep positions. The cover is equipped with premium metal zipper for convenient disassembly and washing.
  • 【Extend Mattress Life】Topper is the cushion layer placed on top of a mattress and can give you the desired softness or firmness for the best sleep. A good mattress topper will also protect your bed’s surface and keep it durable for longer. Replacing quality mattresses can be expensive, but our mattress topper is affordable and able to decrease the discomfort of an old bed without having to splurge on a whole new mattress.
9.4
Superb
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5
9.3
Superb
Southern Foam 4 Inch Double Memory Foam Mattress Topper
BEDZONLINE
Southern Foam 4 Inch Double Memory Foam Mattress Topper
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Why We Love It
  • Without any product description, I am unable to generate specific points about why we love the product. Can you please provide the product description?
Main Highlights
  • Comfort Enhancer: Adds a plush layer of memory foam to your existing mattress for a more supportive and comfortable sleep
  • Pressure Relief: Contours to your body, providing relief from pressure points and promoting better alignment
  • Easy to Use: Simply place on your mattress and enjoy the added comfort, no assembly required
  • Size Perfect: Fits perfectly on Double (135 x 190 cm) mattresses, ensuring full coverage
  • Easy Care: Spot clean only for simple and convenient maintenance
9.3
Superb
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6
9.2
Superb
3 Inch Memory Foam Mattress Topper Double Bed-7.5cm Thickness Mattress Topper for Back Pain Relief with Washable Bamboo Cover (Double Size-135x190cm)
UsparkMC
3 Inch Memory Foam Mattress Topper Double Bed-7.5cm Thickness Mattress Topper for Back Pain Relief with Washable Bamboo Cover (Double Size-135x190cm)
Free Shipping
Why We Love It
  • Enhances sleep with adaptive comfort.
  • Cover is eco-friendly and soft.
  • Ensures refreshed and energized mornings.
Main Highlights
  • Double Layer Foam: The combination of 2" memory foam and 1" bamboo charcoal foam helps provide adaptive comfort and support. Enhance your sleep with an egg crate memory foam mattress topper that conforms to your body, relieving all pressure points along the way
  • Luxuriously Soft Bamboo Cover: Our Memory Foam Mattress Topper comes with a premium bamboo cover that is crafted using eco-friendly materials. Experience a silky smooth feel that is gentle to your skin and easy to wash and remove
  • Non-slip & Machine Washable Cover: Use skin-friendly and breathable polyester fiber, with elastic straps and non-slip surface backing to prevent slipping and premium metal zipper for easy removal and washing
  • Upgrade your sleeping experience: Our high-quality mattress topper is designed to provide you with luxurious comfort and support, ensuring you wake up feeling refreshed and energized every morning
  • 100% Customer Satisfaction: USPARK is committed to promoting healthy sleep for humanity. If there is any quality problem, please don't hesitate to contact our customer service, we will spare no effort to help you solve the problem
9.2
Superb
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7
9.1
Superb
WOWTTRELAX Memory Foam Mattress Topper Double Bed, 3 IN Dual-Layer Extra Thick, Flexible Ventilated Design With Washable & Removable Knitting Cover, Back Pain Support (135x190x7cm)
wowttrelax
WOWTTRELAX Memory Foam Mattress Topper Double Bed, 3 IN Dual-Layer Extra Thick, Flexible Ventilated Design With Washable & Removable Knitting Cover, Back Pain Support (135x190x7cm)
Free Shipping
Why We Love It
  • Superior comfort and support.
  • Hypoallergenic breathable material.
  • Enhanced durability and practicality.
Main Highlights
  • ☪️【Superior Comfort】 WOWTTRELAX foam topper combines 3cm gel memory foam and 4cm high density foam,provides even support for your body and relieves pressure points. Unique dual-layer extra thick design adds softness and comfort to the bed to help improve sleep quality.
  • ☪️【Breathable Hypoallergenic Padding】 The mattress cover is made of breathable microfibre fabric, a hypoallergenic material that ensures air circulation and helps to dissipate heat and moisture, as well as protects against allergy-causing bacteria and dust mites, stopping the growth of mould, bacteria or other allergens, making it a great choice even for allergy sufferers, and is also suitable for babies.
  • ☪️【Premium Mattress Topper】 This topper is made of 100% microfibre polyester to give you a comfortable feel. It adapts to the unique shape and size of your body to provide ultimate support and comfort. You will feel like sleeping on a cloud!
  • ☪️【Durability and Stability】 The topper comes with a protective layer that not only protects the materials inside the mattress, but also extends the life of the mattress. The underlying high-density foam provides additional support and stability, while also helping to reduce compression and deformation of the fillings.
  • ☪️【Practicality】 Whether it's a mattress pad or a spring bed, sofa bed or RV, it's a great choice. The mattress topper is vacuum sealed compressed and packaged in a box which is also very convenient when you get a delivery and need to move to your bedroom.
9.1
Superb
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8
9.1
Superb
Save 29%
Silentnight 201056 Impress Memory Foam Mattress Topper - 5cm Thick Luxury Orthopedic Single Mattress Topper for Back and Neck Pain - Removable Washable Cover, White
Silentnight
Silentnight 201056 Impress Memory Foam Mattress Topper - 5cm Thick Luxury Orthopedic Single Mattress Topper for Back and Neck Pain - Removable Washable Cover, White
29% Off
Why We Love It
  • Contours body for soothing relief.
  • Offers enhanced memory foam comfort.
  • Hypoallergenic and machine washable.
Main Highlights
  • SOOTHING PRESSURE RELIEF: Moulds with the contours of your body for soothing pressure relief; making it the perfect choice for sink-in snoozers
  • CUSHIONED COMFORT: Next level memory foam comfort that gently cocoons your body
  • 5CM DEEP: The 5cm depth of our medium topper helps to rejuvenate your mattress and is ideal for people who mostly sleep on their back or side
  • REMOVABLE COVER: Comes with a handy removable cover that is machine washable so you can always keep your topper feeling fresh and hygienic
  • HYPOALLERGENIC: This product does not contain any materials likely to cause allergies
9.1
Superb
Save 29%
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9
8.9
Excellent
Save 5%
CHUN YI 3 inch Thick Double Memory Foam Mattress Topper With Anti-Slip Ventilated Hypoallergic Bamboo Cover, Soft Flexible Memory Foam Design For Pressure Relieving(7.5cm,135x190cm),White
CHUN YI
CHUN YI 3 inch Thick Double Memory Foam Mattress Topper With Anti-Slip Ventilated Hypoallergic Bamboo Cover, Soft Flexible Memory Foam Design For Pressure Relieving(7.5cm,135x190cm),White
5% Off
Why We Love It
  • Elevates sleep quality.
  • Optimized for comfort.
  • Hassle-free installation.
Main Highlights
  • 【Versatile】The Memory Foam Mattress Topper with bamboo cover is an economical and versatile solution for improving the quality of sleep. It is designed to fit any mattress size and is suitable for all types of sleepers.
  • 【Breathable】The bamboo cover is breathable and helps to regulate temperature, ensuring a comfortable sleep. It also helps to reduce the build-up of moisture and sweat, making it ideal for those who suffer from night sweats.
  • 【Safe-Friendly Materials】The Memory Foam Mattress Topper with bamboo cover is made from safe and friendly materials, free from any harsh chemicals or toxins. This makes it a great choice for those with allergies or sensitive skin.
  • 【Non-slip Design】The non-slip design of the Memory Foam Mattress Topper with bamboo cover ensures that it stays in place throughout the night, providing a secure and comfortable sleep.
  • 【Improving the quality of Sleep】The Memory Foam Mattress Topper with bamboo cover helps to provide a restful sleep, so you can wake up feeling refreshed and energized. It also helps to reduce pressure points, so you can wake up without any aches and pains.
  • 【Deluxe Comfort】The memory foam layer conforms to the natural curves of your body and provides good pressure relief to ensure a comfortable and restful sleep every night.
  • 【Soft sleep surface】This wonderful visco-elastic memory foam mattress topper has a soft surface to enhance your sleep quality.
  • 【Easy installation】We pack it in a compressed package, after you receive it, just put it on your bed and wait for 48 to 72 hours, he will fully unfold and fit your bed base perfectly.
  • 【Quality assurance】If there is any problem with the product, please contact us first, we have special staff to answer and deal with you, CHUN YI is a quality brand and will be responsible for customers to the end.
8.9
Excellent
Save 5%
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10
8.9
Excellent
Save 15%
Twirest 7CM Super King Memory Foam Mattress Topper,Gel Mattress Pad,Breathable & Removable Fabric Cover,White(180 * 200 * 7CM)
Twirest
Twirest 7CM Super King Memory Foam Mattress Topper,Gel Mattress Pad,Breathable & Removable Fabric Cover,White(180 * 200 * 7CM)
15% OffFree Shipping
Why We Love It
  • Supports your body's structure.
  • Easy to clean and maintain.
  • Available in various thicknesses.
Main Highlights
  • SUPPORTIVE CONSTRUCTION: The Twirest mattress topper has a specially designed construction that combines a memory foam layer with a supportive layer that effectively distributes body pressure, making your mattress a better fit for you
  • EASY TO CLEAN: With an attached zip and removable knitted fabric cover, it can effectively solve the problem of stains caused by sweating
  • VARIOUS SIZES:For your convenience, we offer 5cm, 7cm, 10cm thicknesses, from single to super King for you to choose
  • VACUUM-PACKED: Due to vacuum packaging, it may appear thinner after unpacking, it usually takes 48-72 hours to fully rebound, please be patient
  • PRACTICALITY:The mattress Topper is vacuum-sealed and compressed in a box, making it very easy to transport and you can use it on a bedspring, sofa bed or caravan
8.9
Excellent
Save 15%
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