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Best King Size Mattresses Extra Firm of 2026
Last updated on 13/05/2026
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1
Silentnight Miracoil Ortho Mattress, Extra Firm, King
Silentnight
15% Off
Why we love it
Eco-friendly for comfortable sleep.
Provides long-lasting support.
Hypoallergenic and fresh.
Main Highlights
ECO COMFORT FIBRES : Our EcoComfort Fibre layer is made with sustainable fibres, which are extra breathable, to keep your sleeping environment at a comfortable temperature; Encased in a super-soft, breathable quilted fabric and ideal for planet savers
LONG LASTING SUPPORT: The Miracoil springs are scientifically proven to improve your spinal alignment and posture which will help if you're struggling with niggling aches and pains, providing luxurious comfort and support personal to you; The zoned support system also ensures you and your partner don’t roll together during the night, so you both sleep peacefully
HAND TUFTED SLEEP SURFACE : For additional back support and a naturally firmer feel; It keeps the plush layers and filling in position to prevent it becoming flattened or lumpy; It also firms up the layers, so you keep that soft touch but you have a firmer level of support too
EXTRA FIRM COMFORT : Striking the perfect balance between comfort and orthopaedic support, this mattress helps with aches and pains and is ideal for those seeking relief from a firmer feel mattress; This highly supportive mattress is for sleepers with a heavier build, enjoy extra support from head to toe - ideal for front or back sleepers
HYPOALLERGENIC: This anti-dust mite and hypoallergenic mattress is allergy-friendly, offering you a clean and fresh night's sleep
UK’S MOST TRUSTED SLEEP BRAND: All our products are handmade in the UK and made to order, bringing your beautiful hand-crafted quality products, using the latest innovations; We lead the market in sustainability too and are proud to be a carbon neutral business
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9.7
Exceptional
Check Price
9.7
Exceptional
Silentnight
Silentnight Miracoil Ortho Mattress, Extra Firm, King
15% Off
Check Price
Show More
Why we love it
Eco-friendly for comfortable sleep.
Provides long-lasting support.
Hypoallergenic and fresh.
Main Highlights
ECO COMFORT FIBRES : Our EcoComfort Fibre layer is made with sustainable fibres, which are extra breathable, to keep your sleeping environment at a comfortable temperature; Encased in a super-soft, breathable quilted fabric and ideal for planet savers
LONG LASTING SUPPORT: The Miracoil springs are scientifically proven to improve your spinal alignment and posture which will help if you're struggling with niggling aches and pains, providing luxurious comfort and support personal to you; The zoned support system also ensures you and your partner don’t roll together during the night, so you both sleep peacefully
HAND TUFTED SLEEP SURFACE : For additional back support and a naturally firmer feel; It keeps the plush layers and filling in position to prevent it becoming flattened or lumpy; It also firms up the layers, so you keep that soft touch but you have a firmer level of support too
EXTRA FIRM COMFORT : Striking the perfect balance between comfort and orthopaedic support, this mattress helps with aches and pains and is ideal for those seeking relief from a firmer feel mattress; This highly supportive mattress is for sleepers with a heavier build, enjoy extra support from head to toe - ideal for front or back sleepers
HYPOALLERGENIC: This anti-dust mite and hypoallergenic mattress is allergy-friendly, offering you a clean and fresh night's sleep
UK’S MOST TRUSTED SLEEP BRAND: All our products are handmade in the UK and made to order, bringing your beautiful hand-crafted quality products, using the latest innovations; We lead the market in sustainability too and are proud to be a carbon neutral business
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Value for Money
2
slily 12 Inch 5ft King Mattress, King Size Mattresses Memory Foam Pocket Sprung, 7-Zone Orthpaedic Mattress for Pressure Relief Motion Isolation, Hybrid Mattress Medium Firm (150x200x30cm)
slily
23% Off
Why we love it
Medium firm for comfort.
Motion isolation for sleep.
Easy unboxing and setup.
Main Highlights
Medium Firm Support for Optimal Sleep Comfort: Slily king mattress crafted with premium carbon steel hybrid springs and a high-density support layer, our mattress delivers the ultimate medium firm feel. It avoids the sinking sensation of overly soft mattresses and the pressure points from hard ones, suits back, side and all sleeping positions, and keeps your spine in a neutral position – the perfect balance of sturdy support and cloud-like comfort.
Support for Spine Health & Pressure Relief: Each spring is individually encased to contour perfectly to your body’s natural curves, evenly distributing pressure across your entire body and supporting your spine in its optimal alignment. Eliminates back, waist and hip aches caused by insufficient mattress support, leaving you feeling refreshed with no stiffness when you wake up. Our king size mattress equipped with high-compression springs also offer unbeatable resistance to sagging and deformation for long-lasting support
Motion Isolation & Silent Sleep: Independently encased springs move separately to block all motion transfer completely. No vibrations or noise when your partner tosses and turns at night, drastically reducing sleep disruptions for co-sleepers and boosting your deep sleep duration
Vacuum Compressed & Boxed Delivery for Easy Operating: Our hybrid mattress is vacuum-sealed, rolled up and shipped in a compact box, gliding effortlessly through narrow hallways and doorways. No professional installation needed – simply unbox, unroll and watch it expand to full size automatically. Solves the hassle of bulky mattress delivery and tricky home entry for good
Shop Our Slily Mattress with Total Confidence: All mattresses are crafted from safe, premium materials and come with a 100-night trial guarantee for your complete peace of mind. Please allow at least 72 hours after unboxing for the foam and springs to fully regain their shape. Our testing indicates it takes a minimum of four weeks for you and your new mattress to properly adjust to one another. Should you have any queries, please do not hesitate to let us know
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9.6
Superb
Check Price
9.6
Superb
slily
slily 12 Inch 5ft King Mattress, King Size Mattresses Memory Foam Pocket Sprung, 7-Zone Orthpaedic Mattress for Pressure Relief Motion Isolation, Hybrid Mattress Medium Firm (150x200x30cm)
23% Off
Check Price
Show More
Why we love it
Medium firm for comfort.
Motion isolation for sleep.
Easy unboxing and setup.
Main Highlights
Medium Firm Support for Optimal Sleep Comfort: Slily king mattress crafted with premium carbon steel hybrid springs and a high-density support layer, our mattress delivers the ultimate medium firm feel. It avoids the sinking sensation of overly soft mattresses and the pressure points from hard ones, suits back, side and all sleeping positions, and keeps your spine in a neutral position – the perfect balance of sturdy support and cloud-like comfort.
Support for Spine Health & Pressure Relief: Each spring is individually encased to contour perfectly to your body’s natural curves, evenly distributing pressure across your entire body and supporting your spine in its optimal alignment. Eliminates back, waist and hip aches caused by insufficient mattress support, leaving you feeling refreshed with no stiffness when you wake up. Our king size mattress equipped with high-compression springs also offer unbeatable resistance to sagging and deformation for long-lasting support
Motion Isolation & Silent Sleep: Independently encased springs move separately to block all motion transfer completely. No vibrations or noise when your partner tosses and turns at night, drastically reducing sleep disruptions for co-sleepers and boosting your deep sleep duration
Vacuum Compressed & Boxed Delivery for Easy Operating: Our hybrid mattress is vacuum-sealed, rolled up and shipped in a compact box, gliding effortlessly through narrow hallways and doorways. No professional installation needed – simply unbox, unroll and watch it expand to full size automatically. Solves the hassle of bulky mattress delivery and tricky home entry for good
Shop Our Slily Mattress with Total Confidence: All mattresses are crafted from safe, premium materials and come with a 100-night trial guarantee for your complete peace of mind. Please allow at least 72 hours after unboxing for the foam and springs to fully regain their shape. Our testing indicates it takes a minimum of four weeks for you and your new mattress to properly adjust to one another. Should you have any queries, please do not hesitate to let us know
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3
King Size Extra Firm Orthopedic Support Mattress 5FT, 12.6 Inch Cooling Gel Memory Foam with Pressure Relief for Back Pain - OekoTex Certified, Aloe Touch Fabric Soft on Skin 150x200x32 cm, Cotswold
naturalex
Why we love it
Exceptional lumbar support provided.
Dual-season comfort for all.
Premium materials ensure restful sleep.
Main Highlights
🛏️ EXTRA FIRM ORTHOPEDIC SUPPORT: The Cotswold mattress is a luxury, handcrafted memory foam mattress which is designed to maintain spinal alignment whilst supporting your body across 7 zones. The gel filled wave design that supports your head & neck, shoulders, back, waist, buttocks, legs and feet. It combines quality engineered fabrics with multilayers of comfort fillings. Featuring AreaPur HQ, MemoSoft V30, Gel Fresh and AirFresh cooling technology for a more hygienic sleep.
🥇 KING SIZE COMFORT: Indulge in dreamy nights slumber on this king size memory foam mattress. Gel Fresh memory foam and 3D breathable mesh promotes air circulation and regulates mattress temperature. MemoSoft V30 memory foam promotes blood circulation in the body, fully relaxes your muscles and releases body ches. Enjoy a healthy 8 hours of uninterupted deep sleep every day. Suitable for all sleeping positions.
🌱 BODY HUGS : This king size mattress with Area Pur viscoelastic foam balances softness and elasticity, easing pressure from tired muscles thanks to high - density support. It has been proven to improve your overall sleep by 30% and general wellbeing by 40%.
☀️❄️ ADAPTS TO ALL SEASONS: The winter side of the mattress contains thick and insulating AloeTouch double stretch, extra soft fabric which hugs your body to sleep. The summer side features Gel Fresh viscoelastic foam for a therapeutic rest on warm nights.
💖 MATTRESS IN A BOX : This 32cm / 12.6 INCH high king size mattress has been vacuum-compressed, sealed and neatly rolled in a box for shipping and delivering directly to you. Please wait 72 hours after opening the box to allow the 5ft memory foam mattress to expand fully, which will help improve the durability and comfort of the mattress. All naturalex mattresses come with a 5 year warranty.
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9.4
Superb
Check Price
9.4
Superb
naturalex
King Size Extra Firm Orthopedic Support Mattress 5FT, 12.6 Inch Cooling Gel Memory Foam with Pressure Relief for Back Pain - OekoTex Certified, Aloe Touch Fabric Soft on Skin 150x200x32 cm, Cotswold
Check Price
Show More
Why we love it
Exceptional lumbar support provided.
Dual-season comfort for all.
Premium materials ensure restful sleep.
Main Highlights
🛏️ EXTRA FIRM ORTHOPEDIC SUPPORT: The Cotswold mattress is a luxury, handcrafted memory foam mattress which is designed to maintain spinal alignment whilst supporting your body across 7 zones. The gel filled wave design that supports your head & neck, shoulders, back, waist, buttocks, legs and feet. It combines quality engineered fabrics with multilayers of comfort fillings. Featuring AreaPur HQ, MemoSoft V30, Gel Fresh and AirFresh cooling technology for a more hygienic sleep.
🥇 KING SIZE COMFORT: Indulge in dreamy nights slumber on this king size memory foam mattress. Gel Fresh memory foam and 3D breathable mesh promotes air circulation and regulates mattress temperature. MemoSoft V30 memory foam promotes blood circulation in the body, fully relaxes your muscles and releases body ches. Enjoy a healthy 8 hours of uninterupted deep sleep every day. Suitable for all sleeping positions.
🌱 BODY HUGS : This king size mattress with Area Pur viscoelastic foam balances softness and elasticity, easing pressure from tired muscles thanks to high - density support. It has been proven to improve your overall sleep by 30% and general wellbeing by 40%.
☀️❄️ ADAPTS TO ALL SEASONS: The winter side of the mattress contains thick and insulating AloeTouch double stretch, extra soft fabric which hugs your body to sleep. The summer side features Gel Fresh viscoelastic foam for a therapeutic rest on warm nights.
💖 MATTRESS IN A BOX : This 32cm / 12.6 INCH high king size mattress has been vacuum-compressed, sealed and neatly rolled in a box for shipping and delivering directly to you. Please wait 72 hours after opening the box to allow the 5ft memory foam mattress to expand fully, which will help improve the durability and comfort of the mattress. All naturalex mattresses come with a 5 year warranty.
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4
King Size Extra Firm Orthopedic Support Mattress 5FT, 12 Inch Cooling Gel Memory Foam with Pressure Relief for Back Pain - OekoTex Certified, Aloe Touch Fabric Soft on Skin 150x200x30 cm, Cotswold
naturalex
Why we love it
Superb comfort with varied fillings.
Ensures regulated body temperature.
Dual-sided for seasonal suitability.
Main Highlights
🛏️ EXTRA FIRM ORTHOPEDIC SUPPORT: The Cotswold mattress is a luxury, handcrafted memory foam mattress which is designed to maintain spinal alignment whilst supporting your body across 7 zones. The gel filled wave design that supports your head & neck, shoulders, back, waist, buttocks, legs and feet. It combines quality engineered fabrics with multilayers of comfort fillings. Featuring AreaPur HQ, MemoSoft V30, Gel Fresh and AirFresh cooling technology for a more hygienic sleep.
🥇 KING SIZE COMFORT: Indulge in dreamy nights slumber on this king size memory foam mattress. Gel Fresh memory foam and 3D breathable mesh promotes air circulation and regulates mattress temperature. MemoSoft V30 memory foam promotes blood circulation in the body, fully relaxes your muscles and releases body ches. Enjoy a healthy 8 hours of uninterupted deep sleep every day. Suitable for all sleeping positions.
🌱 BODY HUGS: This king size mattress with Area Pur viscoelastic foam balances softness and elasticity, easing pressure from tired muscles thanks to high - density support. It has been proven to improve your overall sleep by 30% and general wellbeing by 40%.
☀️❄️ ADAPTS TO ALL SEASONS: The winter side of the mattress contains thick and insulating AloeTouch double stretch, extra soft fabric which hugs your body to sleep. The summer side features Gel Fresh viscoelastic foam for a therapeutic rest on warm nights.
💖 LOVE IT OR SHOVE IT: This 30cm / 12 INCH high king size mattress has been vacuum-compressed, sealed and neatly rolled in a box for shipping and delivering directly to you. Please wait 72 hours after opening the box to allow the 5ft memory foam mattress to expand fully, which will help improve the durability and comfort of the mattress. All naturalex mattresses come with a 30 night trial and a 5 year warranty.
Show More
9.3
Superb
Check Price
9.3
Superb
naturalex
King Size Extra Firm Orthopedic Support Mattress 5FT, 12 Inch Cooling Gel Memory Foam with Pressure Relief for Back Pain - OekoTex Certified, Aloe Touch Fabric Soft on Skin 150x200x30 cm, Cotswold
Check Price
Show More
Why we love it
Superb comfort with varied fillings.
Ensures regulated body temperature.
Dual-sided for seasonal suitability.
Main Highlights
🛏️ EXTRA FIRM ORTHOPEDIC SUPPORT: The Cotswold mattress is a luxury, handcrafted memory foam mattress which is designed to maintain spinal alignment whilst supporting your body across 7 zones. The gel filled wave design that supports your head & neck, shoulders, back, waist, buttocks, legs and feet. It combines quality engineered fabrics with multilayers of comfort fillings. Featuring AreaPur HQ, MemoSoft V30, Gel Fresh and AirFresh cooling technology for a more hygienic sleep.
🥇 KING SIZE COMFORT: Indulge in dreamy nights slumber on this king size memory foam mattress. Gel Fresh memory foam and 3D breathable mesh promotes air circulation and regulates mattress temperature. MemoSoft V30 memory foam promotes blood circulation in the body, fully relaxes your muscles and releases body ches. Enjoy a healthy 8 hours of uninterupted deep sleep every day. Suitable for all sleeping positions.
🌱 BODY HUGS: This king size mattress with Area Pur viscoelastic foam balances softness and elasticity, easing pressure from tired muscles thanks to high - density support. It has been proven to improve your overall sleep by 30% and general wellbeing by 40%.
☀️❄️ ADAPTS TO ALL SEASONS: The winter side of the mattress contains thick and insulating AloeTouch double stretch, extra soft fabric which hugs your body to sleep. The summer side features Gel Fresh viscoelastic foam for a therapeutic rest on warm nights.
💖 LOVE IT OR SHOVE IT: This 30cm / 12 INCH high king size mattress has been vacuum-compressed, sealed and neatly rolled in a box for shipping and delivering directly to you. Please wait 72 hours after opening the box to allow the 5ft memory foam mattress to expand fully, which will help improve the durability and comfort of the mattress. All naturalex mattresses come with a 30 night trial and a 5 year warranty.
Show More
5
NOFFA 5FT Orthopedic King Mattress | 12" King-Size Hybrid Mattresses | 7 Zone Orthopedic Mattresses Include Memory Foam & Pocket Sprungs,Medium Firm,150x200x30cm
NOFFA
Why we love it
Independent spring support system.
Eco-friendly and skin-friendly certifications.
Zoned support for spinal alignment.
Main Highlights
1 . 1000+ Pocketed Springs:NOFFA King size mattress features over 1,000 individually pocketed springs for independent response and reduced partner disturbance.
2 . 7-Zone Support: The 5FT mattress is divided into 7 zones, providing different levels of support for your head to feet.This design maximizes the fit of King mattress to the body contour, relieving muscle tension and back pain.
3 . Memory Foam: the memory foam on top of the mattress provide extra comfort feeling by reduce up to 85% 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.
4 . Double Authentication: The 150*200 mattress has been certified by CertiPUR-US and OEKO-TEX, ensuring it is more skin-friendly and earth-friendly.
5 . 100-Nights Trial: Scientific experiments have shown that adapting to a new King mattress usually takes 2 weeks. For this reason, we offer a 100 day extended return period for the hybrid mattress.
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9.2
Superb
Check Price
9.2
Superb
NOFFA
NOFFA 5FT Orthopedic King Mattress | 12" King-Size Hybrid Mattresses | 7 Zone Orthopedic Mattresses Include Memory Foam & Pocket Sprungs,Medium Firm,150x200x30cm
Check Price
Show More
Why we love it
Independent spring support system.
Eco-friendly and skin-friendly certifications.
Zoned support for spinal alignment.
Main Highlights
1 . 1000+ Pocketed Springs:NOFFA King size mattress features over 1,000 individually pocketed springs for independent response and reduced partner disturbance.
2 . 7-Zone Support: The 5FT mattress is divided into 7 zones, providing different levels of support for your head to feet.This design maximizes the fit of King mattress to the body contour, relieving muscle tension and back pain.
3 . Memory Foam: the memory foam on top of the mattress provide extra comfort feeling by reduce up to 85% 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.
4 . Double Authentication: The 150*200 mattress has been certified by CertiPUR-US and OEKO-TEX, ensuring it is more skin-friendly and earth-friendly.
5 . 100-Nights Trial: Scientific experiments have shown that adapting to a new King mattress usually takes 2 weeks. For this reason, we offer a 100 day extended return period for the hybrid mattress.
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6
dosleeps King Size Mattress 5FT | 10" Memory Foam & Pocket Sprung | 9-Zone Orthopedic Support, Breathable Cover, Motion Isolation,Edge Support,Medium Firm 150x200x25cm
dosleeps
Why we love it
Innovative 9 Zone Support System.
Cooling Tencel surface technology.
Individually wrapped pocket coils.
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.
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9.1
Superb
Check Price
9.1
Superb
dosleeps
dosleeps King Size Mattress 5FT | 10" Memory Foam & Pocket Sprung | 9-Zone Orthopedic Support, Breathable Cover, Motion Isolation,Edge Support,Medium Firm 150x200x25cm
Check Price
Show More
Why we love it
Innovative 9 Zone Support System.
Cooling Tencel surface technology.
Individually wrapped pocket coils.
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.
Show More
7
COSMOS Super King Extra Firm Spine Support Mattress 6FT, 11.8 Inch 7 Zone Memory Foam Mattress, Edge Support - Fire Retardant OekoTex Certified 180x200x30 cm, Upsilon
COSMOS
Why we love it
Exceptional zoned support provided.
Super king size for maximum comfort.
Safety and hygiene prioritized effectively.
Main Highlights
🛏️ EXTRA FIRM SPINAL SUPPORT : Because we spend a third of our lives in bed, this memory foam mattress is designed to give you an extraordinary feeling of comfort. The viscoelastic foam mattress supports you across 7 zones, providing support for 7 main parts of the body: head & neck, shoulders, back, waist, buttocks, legs and feet. Suitable for every sleeping position.
🥇 SUPER KING SIZE COMFORT : Indulge in sweet nights rest on this super king size memory foam mattress. This super king size bed mattress is perfect for adults and children, side and back sleepers. Fits all UK standard bed bases (6ft x 6ft6, 180cm x 200cm). High-quality core for ideal adaptability. This 11.8 inch thick mattress provides excellent support for the spine and offers you the well-being and comfort your body craves.
🌱 BODY HUGGING SUPPORT : This super king size mattress features Active-Latex multilayer technology. It balances softness and elasticity, easing pressure from tired muscles, thanks to high - density support. It has been proven to improve your overall sleep by 30% and general wellbeing by 40%, allowing you to wake up refreshed. Featuring a padded mattress top, and gold embroidered stitching on the mattress.
💖 SAFETY & HYGIENE : Protected by fire safety standards, the winter side of the mattress contains thick and insulating AloeTouch double stretch, extra soft fabric which hugs your body to sleep. The summer side features VISCOGEL ACTIF foam for a therapeutic rest on warm nights. Certified by OekoTex.
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9.0
Superb
Check Price
9.0
Superb
COSMOS
COSMOS Super King Extra Firm Spine Support Mattress 6FT, 11.8 Inch 7 Zone Memory Foam Mattress, Edge Support - Fire Retardant OekoTex Certified 180x200x30 cm, Upsilon
Check Price
Show More
Why we love it
Exceptional zoned support provided.
Super king size for maximum comfort.
Safety and hygiene prioritized effectively.
Main Highlights
🛏️ EXTRA FIRM SPINAL SUPPORT : Because we spend a third of our lives in bed, this memory foam mattress is designed to give you an extraordinary feeling of comfort. The viscoelastic foam mattress supports you across 7 zones, providing support for 7 main parts of the body: head & neck, shoulders, back, waist, buttocks, legs and feet. Suitable for every sleeping position.
🥇 SUPER KING SIZE COMFORT : Indulge in sweet nights rest on this super king size memory foam mattress. This super king size bed mattress is perfect for adults and children, side and back sleepers. Fits all UK standard bed bases (6ft x 6ft6, 180cm x 200cm). High-quality core for ideal adaptability. This 11.8 inch thick mattress provides excellent support for the spine and offers you the well-being and comfort your body craves.
🌱 BODY HUGGING SUPPORT : This super king size mattress features Active-Latex multilayer technology. It balances softness and elasticity, easing pressure from tired muscles, thanks to high - density support. It has been proven to improve your overall sleep by 30% and general wellbeing by 40%, allowing you to wake up refreshed. Featuring a padded mattress top, and gold embroidered stitching on the mattress.
💖 SAFETY & HYGIENE : Protected by fire safety standards, the winter side of the mattress contains thick and insulating AloeTouch double stretch, extra soft fabric which hugs your body to sleep. The summer side features VISCOGEL ACTIF foam for a therapeutic rest on warm nights. Certified by OekoTex.
Show More
8
Super King Extra Firm Orthopedic Support Mattress 6FT, 12 Inch Cooling Gel Memory Foam with Pressure Relief for Back Pain - OekoTex Certified, Aloe Touch Fabric Soft on Skin 180x200x30 cm, Cotswold
naturalex
Why we love it
Luxury handcrafted memory foam.
Cooling effect for all seasons.
5-year warranty for peace of mind.
Main Highlights
🛏️ EXTRA FIRM ORTHOPEDIC SUPPORT: The Cotswold mattress is a luxury, handcrafted memory foam mattress which is designed to maintain spinal alignment whilst supporting your body across 7 zones. The gel filled wave design that supports your head & neck, shoulders, back, waist, buttocks, legs and feet. It combines quality engineered fabrics with multilayers of comfort fillings. Featuring AreaPur HQ, MemoSoft V30, Gel Fresh and AirFresh cooling technology for a more hygienic sleep.
🥇 SUPER KING SIZE MATTRESS: Perfect for adults and children, side and back sleepers. Fits all UK standard bed bases (6ft x 6ft6, 180cm x 200cm). 3D mesh on the summer side for cooling effect and warm padding on winter side for cosiness.
🌱 BODY HUGS : This super king size mattress with Area Pur viscoelastic foam balances softness and elasticity, easing pressure from tired muscles thanks to high - density support. It has been proven to improve your overall sleep by 30% and general wellbeing by 40%.
☀️❄️ ADAPTS TO ALL SEASONS: The winter side of the mattress contains thick and insulating AloeTouch double stretch, extra soft fabric which hugs your body to sleep. The summer side features Gel Fresh viscoelastic foam for a therapeutic rest on warm nights.
💖 MATTRESS IN A BOX: This 30cm high super king size mattress has been vacuum-compressed, sealed and neatly rolled in a box for shipping and delivering directly to you. Please wait 72 hours after opening the box to allow the 6ft memory foam mattress to expand fully, which will help improve the durability and comfort of the mattress. For your comfort, we offer a 30-night trial and 5-year support on this 5ft king size mattress. If it's not the perfect fit for you, just let us know, and we'll work to make it right.
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8.8
Excellent
Check Price
8.8
Excellent
naturalex
Super King Extra Firm Orthopedic Support Mattress 6FT, 12 Inch Cooling Gel Memory Foam with Pressure Relief for Back Pain - OekoTex Certified, Aloe Touch Fabric Soft on Skin 180x200x30 cm, Cotswold
Check Price
Show More
Why we love it
Luxury handcrafted memory foam.
Cooling effect for all seasons.
5-year warranty for peace of mind.
Main Highlights
🛏️ EXTRA FIRM ORTHOPEDIC SUPPORT: The Cotswold mattress is a luxury, handcrafted memory foam mattress which is designed to maintain spinal alignment whilst supporting your body across 7 zones. The gel filled wave design that supports your head & neck, shoulders, back, waist, buttocks, legs and feet. It combines quality engineered fabrics with multilayers of comfort fillings. Featuring AreaPur HQ, MemoSoft V30, Gel Fresh and AirFresh cooling technology for a more hygienic sleep.
🥇 SUPER KING SIZE MATTRESS: Perfect for adults and children, side and back sleepers. Fits all UK standard bed bases (6ft x 6ft6, 180cm x 200cm). 3D mesh on the summer side for cooling effect and warm padding on winter side for cosiness.
🌱 BODY HUGS : This super king size mattress with Area Pur viscoelastic foam balances softness and elasticity, easing pressure from tired muscles thanks to high - density support. It has been proven to improve your overall sleep by 30% and general wellbeing by 40%.
☀️❄️ ADAPTS TO ALL SEASONS: The winter side of the mattress contains thick and insulating AloeTouch double stretch, extra soft fabric which hugs your body to sleep. The summer side features Gel Fresh viscoelastic foam for a therapeutic rest on warm nights.
💖 MATTRESS IN A BOX: This 30cm high super king size mattress has been vacuum-compressed, sealed and neatly rolled in a box for shipping and delivering directly to you. Please wait 72 hours after opening the box to allow the 6ft memory foam mattress to expand fully, which will help improve the durability and comfort of the mattress. For your comfort, we offer a 30-night trial and 5-year support on this 5ft king size mattress. If it's not the perfect fit for you, just let us know, and we'll work to make it right.
Show More
9
Matoresu 25CM Extra Firm King Mattress with Innerspring Hybrid Memory Foam, King Size Mattress for Ultimate Support & Pressure Relief, Firm Mattress in a Box (150x200x25CM)
Matoresu
19% Off
Limited time deal
Why we love it
Maximum firm support.
Cool and breathable sleep.
Minimizes motion transfer.
Main Highlights
【Ultra Firm Support 】Designed for those needing maximum support, the king hybrid mattress offers an enhanced firm feel (H4/H5 level). It features a high-density foam core and reinforced pocket springs, ensuring better spinal alignment and support, ideal for those needing extra support. Wake up refreshed without aches.
【Cool & Breathable Sleep 】This king mattress stays cool and dry all night with our advanced 3D knitted fabric that wicks away moisture efficiently. The memory foam adapts to the surrounding temperature, while the independent coils enhance air circulation for a cool and refreshing sleep environment. It's an ideal choice for those who tend to sleep hot.
【Motion Isolation】Enjoy peaceful rest without disruptions. Our 8.7-inch pocket spring system absorbs and isolates movement effectively, ensuring you or your partner can move freely throughout the night. The hybrid design with responsive foam layers further minimizes motion transfer for uninterrupted sleep.
【Personalized Comfort】Experience personalized comfort with our precision-engineered 7-zone support system. It adapts dynamically to your body’s weight distribution, offering targeted cushioning and firm support from head to legs. This design relieves pressure points, reducing stress and delivering unmatched comfort.
【Easy Setup】Our firm king mattress is designed for hassle-free transport and setup, effortlessly navigating stairs, door frames, and narrow hallways—simply unbox, unroll, and watch it expand to full size within 48 hours. If you have any questions, Matoresu online service will assist you in solving the problem within 24 hours.
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8.7
Excellent
Check Price
8.7
Excellent
Matoresu
Matoresu 25CM Extra Firm King Mattress with Innerspring Hybrid Memory Foam, King Size Mattress for Ultimate Support & Pressure Relief, Firm Mattress in a Box (150x200x25CM)
19% Off
Limited time deal
Check Price
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Why we love it
Maximum firm support.
Cool and breathable sleep.
Minimizes motion transfer.
Main Highlights
【Ultra Firm Support 】Designed for those needing maximum support, the king hybrid mattress offers an enhanced firm feel (H4/H5 level). It features a high-density foam core and reinforced pocket springs, ensuring better spinal alignment and support, ideal for those needing extra support. Wake up refreshed without aches.
【Cool & Breathable Sleep 】This king mattress stays cool and dry all night with our advanced 3D knitted fabric that wicks away moisture efficiently. The memory foam adapts to the surrounding temperature, while the independent coils enhance air circulation for a cool and refreshing sleep environment. It's an ideal choice for those who tend to sleep hot.
【Motion Isolation】Enjoy peaceful rest without disruptions. Our 8.7-inch pocket spring system absorbs and isolates movement effectively, ensuring you or your partner can move freely throughout the night. The hybrid design with responsive foam layers further minimizes motion transfer for uninterrupted sleep.
【Personalized Comfort】Experience personalized comfort with our precision-engineered 7-zone support system. It adapts dynamically to your body’s weight distribution, offering targeted cushioning and firm support from head to legs. This design relieves pressure points, reducing stress and delivering unmatched comfort.
【Easy Setup】Our firm king mattress is designed for hassle-free transport and setup, effortlessly navigating stairs, door frames, and narrow hallways—simply unbox, unroll, and watch it expand to full size within 48 hours. If you have any questions, Matoresu online service will assist you in solving the problem within 24 hours.
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10
MOLPHIT Extra Firm King Size Mattress, 25cm Deep Hybrid Mattress with Foam and Individually Pocket Springs, Memory Foam Mattresses King for Back Pain Relief, Firm Mattresses in a Box, 150x200x25cm
MOLPHIT
15% Off
Limited time deal
Why we love it
Exceptional lumbar support provided.
Advanced motion isolation technology.
Effortless setup and unpacking.
Main Highlights
【Ultra Kingsize Mattress 】Designed for those needing maximum support, our firm king mattress 150x200x25cm with a high-density foam core and reinforced pocket springs provides an extra firm H4/H5 sleep surface. It is designed to provide lumbar support for back/stomach sleepers and individuals over 90k).
【7-Zone Ergonomic Support】Molphit's innovative king spring mattress features precision-engineered pocket springs that independently conform to your body's contours. Our advanced zoned system delivers targeted cushioning to 7 key areas - from head to legs - dynamically adjusting as you change positions to keep your body perfectly aligned throughout the night.
【Undisturbed Sleep】Molphit's advanced hybrid mattress combines responsive memory foam with individually encased coils that precisely adapt to your body's contours while creating an exceptional motion isolation barrier. The innovative pocket spring system absorbs and contains movement so effectively that you'll remain undisturbed even when your partner changes positions, guaranteeing peaceful, uninterrupted sleep all night.
【Easy Shipping】The MOPHIT 150x200cm single mattress (25cm thickness) arrives expertly compressed in an easy-to-handle box - simply unroll, cut the protective wrap, and watch your memory foam mattress expand to its full luxurious form within 72 hours. Designed for effortless setup that anyone can manage, it delivers instant comfort from night one while fitting perfectly on all standard bed frames.
【Sleep with Confidence】 Every Molphit king mattress comes with our 100-night risk-free trial and decade-long warranty - a testament to our unwavering commitment to quality craftsmanship and your satisfaction. Our sleep experts stand ready 24/7 to ensure your journey to restorative rest is effortless, because we believe you deserve nothing less than life-changing sleep every single night.
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8.7
Excellent
Check Price
8.7
Excellent
MOLPHIT
MOLPHIT Extra Firm King Size Mattress, 25cm Deep Hybrid Mattress with Foam and Individually Pocket Springs, Memory Foam Mattresses King for Back Pain Relief, Firm Mattresses in a Box, 150x200x25cm
15% Off
Limited time deal
Check Price
Show More
Why we love it
Exceptional lumbar support provided.
Advanced motion isolation technology.
Effortless setup and unpacking.
Main Highlights
【Ultra Kingsize Mattress 】Designed for those needing maximum support, our firm king mattress 150x200x25cm with a high-density foam core and reinforced pocket springs provides an extra firm H4/H5 sleep surface. It is designed to provide lumbar support for back/stomach sleepers and individuals over 90k).
【7-Zone Ergonomic Support】Molphit's innovative king spring mattress features precision-engineered pocket springs that independently conform to your body's contours. Our advanced zoned system delivers targeted cushioning to 7 key areas - from head to legs - dynamically adjusting as you change positions to keep your body perfectly aligned throughout the night.
【Undisturbed Sleep】Molphit's advanced hybrid mattress combines responsive memory foam with individually encased coils that precisely adapt to your body's contours while creating an exceptional motion isolation barrier. The innovative pocket spring system absorbs and contains movement so effectively that you'll remain undisturbed even when your partner changes positions, guaranteeing peaceful, uninterrupted sleep all night.
【Easy Shipping】The MOPHIT 150x200cm single mattress (25cm thickness) arrives expertly compressed in an easy-to-handle box - simply unroll, cut the protective wrap, and watch your memory foam mattress expand to its full luxurious form within 72 hours. Designed for effortless setup that anyone can manage, it delivers instant comfort from night one while fitting perfectly on all standard bed frames.
【Sleep with Confidence】 Every Molphit king mattress comes with our 100-night risk-free trial and decade-long warranty - a testament to our unwavering commitment to quality craftsmanship and your satisfaction. Our sleep experts stand ready 24/7 to ensure your journey to restorative rest is effortless, because we believe you deserve nothing less than life-changing sleep every single night.
Show More
