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King size mattresses

Grand Relax Memory Foam Mattress - Multi-Zone Pressure Relief & Support (Single, Double, King, Super-King)

NOW

€ 199.99

€ 899.00

Grand Relax Memory Foam Mattress - Multi-Zone Pressure Relief & Support (Single, Double, King, Super-King)

Durable Build: 28cm thickness with a 4cm topper ensures lasting support. Breathable Technology: Flowspring system keeps you cool and fresh all night. Memory Foam Comfort: Viscoelastic foam contours to your body for pressure relief.
Save 78 %!
Cashmere Royal Deluxe Gel Mattress - Single to Super King Available

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€ 149.99

€ 1091.72

Cashmere Royal Deluxe Gel Mattress - Single to Super King Available

Eco Friendly Materials: Made with natural cashmere fibres. Multiple Sizes: Available in single, double, king and super king sizes.
Save 86 %!
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Luxury Fleece Thermal King Size Blanket Throw - 3 Colours!

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€ 29.99

Luxury Fleece Thermal King Size Blanket Throw - 3 Colours!

Warmth redefined: Embrace unparalleled comfort with the Thermal Oversized Blanket Throw. Crafted from the sumptuously soft faux fur fleece Heat.
4* NYX Hotel Dublin Christchurch City Break for 2 - Superior King Room, Drinks Vouchers & Breakfast, Award Winning Central Stay

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€ 139.00

€ 250.00

4* NYX Hotel Dublin Christchurch City Break for 2 - Superior King Room, Drinks Vouchers & Breakfast, Award Winning Central Stay

Toast to your break: Enjoy a complimentary drinks voucher each to enjoy at the hotel's stylish bar cheers! Where: Christchurch, Dublin.
Save 44 %!
Sonic Kids Cartoon Duvet Cover Set - Breathable Polyester, 3D Print, Single/Double/King, Optional Plush Pillow

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€ 27.99

€ 60.07

Sonic Kids Cartoon Duvet Cover Set - Breathable Polyester, 3D Print, Single/Double/King, Optional Plush Pillow

Soft material: Crafted from lightweight, breathable polyester, this quilt cover offers lasting comfort that's perfect for everyday use. Large design: The bold 3D design brings Sonic's iconic energy to life, making any room stand out with a playful, dynamic look.
Save 53 %!
Chrono Sport Multizone Mattress - All Sizes

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€ 149.00

€ 859.00

Chrono Sport Multizone Mattress - All Sizes

Air. Sense System: Breathable stretch 3D fabric ensures cool, fresh nights by promoting airflow. What's Included? Chrono Sport Multizone Mattress in your chosen size.
Save 83 %!
Luxury Quilted Hybrid Mattress - 4 Sizes

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€ 159.00

€ 551.99

Luxury Quilted Hybrid Mattress - 4 Sizes

Quilting top face: Continuous quilting with intricate geometric patterns provides a weightless feel, joining high and low resilience layers seamlessly. Core: Crafted with High Density HR Premium Care Control foam, it regulates temperature year round and springs back to its original shape.
Save 71 %!
Regal Prime 12-Zone Ergonomic Mattress - 4 Sizes

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€ 139.99

€ 1161.84

Regal Prime 12-Zone Ergonomic Mattress - 4 Sizes

Regulation: Designed to regulate body temperature and helps to achieve a full rest. 12 zones: Resting system that offers adaptability to correct the position of the spine and eliminate pressure points.
Save 88 %!
Bamboo Cloud Natural Fibre Mattress - 5 Sizes

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€ 169.00

€ 569.99

Bamboo Cloud Natural Fibre Mattress - 5 Sizes

Size options: You can choose from 5 sizes including single, small double, double, king, and super king. Quality fabric: The Stretch BAMBOO fabric, made from 100% high quality natural fiber, offers refreshing, cooling properties and helps eliminate toxins from your body.
Save 70 %!
Magnum Cashmere Memory Foam Mattress - 4 Sizes

NOW

€ 139.00

€ 1549.00

Magnum Cashmere Memory Foam Mattress - 4 Sizes

Dual firmness: The innovative Duo. System H2 H3 allows you to choose between medium and high firmness, catering to your unique sleep preferences.
Save 91 %!
Soft Foam Royal Multi-Zone Mattress - All Sizes

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€ 149.99

€ 839.00

Soft Foam Royal Multi-Zone Mattress - All Sizes

Royal Multi Zone Comfort: Experience superior comfort with our multi zone design that adapts to your body's contours. Custom Size Options: Available in single, double, king, and super king sizes to perfectly fit your bed.
Save 82 %!
Zig Zag Memory Fibre Sprung Mattress - All Sizes

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€ 79.99

€ 156.17

Zig Zag Memory Fibre Sprung Mattress - All Sizes

Mattress: Get a zig zag memory fibre open coil sprung mattress. Sprung mattress: 13.5 gauge open coil spring system allows the weight to be distributed evenly for extra support and comfort.
Save 49 %!
Tempus Gold Memory Foam Mattress - 4 Sizes

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€ 189.99

€ 1179.44

Tempus Gold Memory Foam Mattress - 4 Sizes

Breathable Design: Keeps you cool with breathable materials for fresh sleep. Superior Pressure Relief: Adapts to body contours for restful sleep.
Save 84 %!
Ergonomic Cooling Memory Foam Pressure-Relief Mattress - Multiple Sizes

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€ 63.99

€ 164.81

Ergonomic Cooling Memory Foam Pressure-Relief Mattress - Multiple Sizes

Mattress Depth: Features a high layer of high density next generation memory foam to mould around the shape of your body. Cover Material: Features a breathable fabric that has been designed to contain hypoallergenic and anti dust mite fillings with anti bacterial properties to keep the flow of air passing through the mattress.
Save 61 %!
Extra Deep Hybrid Memory Sprung Mattress - Pressure Relief & Support in 4 Sizes

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€ 76.99

€ 171.97

Extra Deep Hybrid Memory Sprung Mattress - Pressure Relief & Support in 4 Sizes

Custom fit options: This mattress is available in a range of sizes, including 2ft 6' small single, 3ft single, 4ft small double, and 4ft 6' double size. Convenient delivery: Delivered vacuum packed, rolled, and boxed, this mattress is easy to set up in your home, making your shopping experience hassle free.
Save 55 %!
Quilted Memory Foam Sprung Mattress - 4 Sizes

NOW

€ 74.99

€ 195.13

Quilted Memory Foam Sprung Mattress - 4 Sizes

Supportive Springs: 13.5 gauge Bonnell open coil spring system ensures even weight distribution. British Craftsmanship: Proudly made in the UK with premium materials and craftsmanship.
Save 62 %!
Visco Biotherapy Ergonomic Hypoallergenic Memory Foam Mattress - 5 Sizes

NOW

€ 149.00

€ 557.99

Visco Biotherapy Ergonomic Hypoallergenic Memory Foam Mattress - 5 Sizes

Available Sizes: Choose from 2ft 6 small single, 3ft single, 4ft small double, 4ft 6 double, or 5ft king. Temperature Regulation: Innovative system keeps you comfortable all night.
Save 73 %!
Visco Cashmere Memory Foam Mattress - Pressure Relief, 5 Sizes

NOW

€ 169.00

€ 587.99

Visco Cashmere Memory Foam Mattress - Pressure Relief, 5 Sizes

Pressure Relieving Memory Foam: Advanced foam contours to your body for optimal support and comfort. Breathable Quilted Cover: 3D interlaced fabric and deep seams enhance airflow and plushness.
Save 71 %!
Memory Foam Multizone Mattress - Pressure Relief & Duo Firmness (All Sizes)

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€ 139.00

€ 959.00

Memory Foam Multizone Mattress - Pressure Relief & Duo Firmness (All Sizes)

12 Pressure Care Zones: Targeted support relieves pressure points for restful sleep. Duo System Technology: Flip for medium or high firmness to suit your comfort needs.
Save 86 %!
Marron 27 Hybrid Mattress - Pocket Spring & Memory Foam, All Sizes

NOW

€ 159.00

€ 660.33

Marron 27 Hybrid Mattress - Pocket Spring & Memory Foam, All Sizes

Easy Delivery: Delivered rolled and vacuum packed for convenience. Thermoregulation: Flow. Spring system maintains optimal temperature all night. Hybrid Comfort: 150 pocket springs and multilayer memory foam for balanced support and softness.
Save 76 %!
Children's Memory Sprung Mattress - Open Coil, Hypoallergenic, 2 Sizes

NOW

€ 68.99

€ 143.74

Children's Memory Sprung Mattress - Open Coil, Hypoallergenic, 2 Sizes

Comfort: Constructed with a layer of next generation visco elastic memory fibre foam. Mattress sale: Get a children's open coil sprung mattress.
Save 52 %!
Hybrid Cool Touch Memory Sprung Mattress - 5 Sizes

NOW

€ 70.99

€ 156.48

Hybrid Cool Touch Memory Sprung Mattress - 5 Sizes

Made in the UK: Crafted with pride using premium materials. Superior Pressure Relief: Adapts to body contours for restful sleep. Temperature Control: Cool Touch cover regulates temperature. Hypoallergenic: Dust mite resistant for a healthy sleep.
Save 55 %!
Dream Aloe Vera Memory Foam Mattress - Ergonomic, Cooling, 5 Sizes

NOW

€ 129.00

€ 407.99

Dream Aloe Vera Memory Foam Mattress - Ergonomic, Cooling, 5 Sizes

Temperature Regulation: Maintains the ideal sleep temperature night after night. Hygienic & Durable: Anti fungal, anti mite, and anti bacterial protection for lasting freshness.
Save 68 %!
Visco Luxury Pureflex Memory Foam Mattress - Ventilating, Medium-Firm, 5 Sizes

NOW

€ 139.00

€ 488.99

Visco Luxury Pureflex Memory Foam Mattress - Ventilating, Medium-Firm, 5 Sizes

Sleep soundly in silence: This Pureflex's unique structure and composition eliminate noise, so movements during sleep are undisturbed and peaceful. Enjoy anti humidity comfort: This mattress' breathable 3D fabric with natural fibre and micro ventilation channels ensures a sweat free, comfortable sleep environment.
Save 72 %!
Cooling Memory Foam Spring Mattress - Ergonomic Support in 5 Sizes

NOW

€ 72.99

€ 184.74

Cooling Memory Foam Spring Mattress - Ergonomic Support in 5 Sizes

Hypoallergenic: Designed for a healthy, allergy free night's rest. Superior Pressure Relief: Medium soft firmness relieves pressure on your back.
Save 60 %!
Cooling Memory Foam Mattress - Ergonomic, Pressure-Relief Support (5 Sizes)

NOW

€ 69.99

€ 144.12

Cooling Memory Foam Mattress - Ergonomic, Pressure-Relief Support (5 Sizes)

Exceptional layers of comfort: Helps to create even weight distribution. Moulding feature: Contours to user's body shape. Mattress: Get a grey sprung seven core mattress. Sizes: Small single, single, small double, double or king.
Save 51 %!
Cooling Memory Foam Mattress - Ergonomic, Pressure-Relief Support (5 Sizes)

NOW

€ 73.99

€ 144.12

Cooling Memory Foam Mattress - Ergonomic, Pressure-Relief Support (5 Sizes)

Vacuum Packed: Arrives rolled and compact for easy delivery and setup. Temperature Regulation: Soft cooling top panel helps maintain a comfortable sleep climate.
Save 49 %!
Orange Memory Foam Mattress with Bonnell Springs - Ergonomic Support in All Sizes

NOW

€ 73.99

€ 128.81

Orange Memory Foam Mattress with Bonnell Springs - Ergonomic Support in All Sizes

Multiple Sizes: Available in small single, single, small double, double and king. Hypoallergenic: Anti dust mite filling ensures a clean, healthy sleep.
Save 43 %!
Cooling Memory Foam Mattress with Zig Zag Stitch - 8" Hybrid, Hypoallergenic, Multiple Sizes

NOW

€ 79.99

€ 192.19

Cooling Memory Foam Mattress with Zig Zag Stitch - 8" Hybrid, Hypoallergenic, Multiple Sizes

Convenient Delivery: Arrives vacuum packed in four sizes; easy setup in minutes. Deep Comfort: 8" thick hybrid mattress with soft memory foam and ergonomic zig zag stitching.
Save 58 %!
Bamboo Royal Care Ventilating Mattress - 4 Sizes

NOW

€ 119.00

€ 1034.78

Bamboo Royal Care Ventilating Mattress - 4 Sizes

Eco friendly: This Bamboo Royal Care mattress is constructed with carefully selected materials that prioritise ecological integrity, ensuring that every component is non toxic and eco friendly. Optional firmness: With innovative Duo System technology, this mattress features two distinct firmness levels on each side, allowing users to choose their preferred level of support and comfort.
Save 88 %!
Luxury Cube Vistoelastic Mattress - 4 Sizes

NOW

€ 139.00

€ 488.99

Luxury Cube Vistoelastic Mattress - 4 Sizes

Sleep in luxury: Experience ultimate comfort with the Cube Vistoelastic Luxury Breathable Mattress, engineered to eliminate pressure points and provide total body support with 11 rest zones. Advanced breathability: The open pore design regulates the optimal temperature for each season, delivering breathable, moisture free comfort, no matter the weather.
Save 72 %!
30cm Royal Spring Premier Mattress - 4 Sizes

NOW

€ 219.00

€ 742.98

30cm Royal Spring Premier Mattress - 4 Sizes

Sustainable Quality: OEKO TEX® certified materials. Superior Pressure Relief: Adapts to body contours for restful sleep.
Save 71 %!
Hypoallergenic Cooling Memory Foam Mattress - 5 Sizes

NOW

€ 60.99

€ 149.25

Hypoallergenic Cooling Memory Foam Mattress - 5 Sizes

Memory foam: Featuring a layer of visco elastic memory foam that contours to your body shape and aligns your joints. Easy to Maintain: This mattress is single sided, meaning it only needs rotating to maintain its shape and performance!
Save 59 %!
Luxury Hypoallergenic Memory Foam Mattress - 5 Sizes

NOW

€ 129.00

€ 437.99

Luxury Hypoallergenic Memory Foam Mattress - 5 Sizes

Silent: This mattress features ultrasound technology which prevents noise during movements for a luxurious and uninterrupted sleep experience. Spine alignment: This mattress is designed to respect the correct alignment of the spine and provides a dual sensation of comfort, increasing the perception of the “cloud” effect for restful sleep.
Save 71 %!
Memory Foam Royal Multi Zone Mattress - 4 Sizes

NOW

€ 129.00

€ 693.39

Memory Foam Royal Multi Zone Mattress - 4 Sizes

Premium Material: Made from Super. Soft Ultra Rest Foam for ultimate comfort. Versatile Sizes: Available in single, double, king, and super king. Health Benefits: Anti allergic, antibacterial, and mite resistant for a healthier sleep.
Save 81 %!
Cooling Memory Foam Hybrid Mattress - 4 Sizes

NOW

€ 79.99

€ 196.37

Cooling Memory Foam Hybrid Mattress - 4 Sizes

Easy Delivery. Arrives vacuum packed and rolled for convenience Temperature Regulation. Innovative cooling technology keeps you comfortable all night Adaptive Contouring. Molds to your body shape for personalized support Hypoallergenic.
Save 59 %!
Memory Foam Open Coil Mattress - 5 Sizes

NOW

€ 64.99

€ 103.72

Memory Foam Open Coil Mattress - 5 Sizes

Superior Pressure Relief. Reduces pressure and supports all sleep positions. Temperature Regulation. Super soft micro quilted cool touch top panel.
Save 37 %!
Dreams Luxury Thermosensitive Viscoelastic 3D Sport Mattress - 5 Sizes

NOW

€ 169.00

€ 605.99

Dreams Luxury Thermosensitive Viscoelastic 3D Sport Mattress - 5 Sizes

Thermosensitive comfort: Enjoy a cool and refreshing sleep experience with 4cm of gel infused viscoelastic foam that adapts to your body's temperature and contours. Seven zone support: Experience targeted relief with a seven zone support system that eliminates pressure points and promotes proper spinal alignment for a restorative sleep.
Save 72 %!
Supreme Hybrid Memory Foam & Pocket Spring Mattress - 4 Sizes

NOW

€ 149.00

€ 959.00

Supreme Hybrid Memory Foam & Pocket Spring Mattress - 4 Sizes

Viscoelastic comfort: This mattress features 5cm of viscoelastic, super soft, and todotherm fibres that provide gradual support for any sleeping position. High transpiration: Experience excellent air circulation that prevents moisture buildup, making it perfect for hot sleepers and those who suffer from night sweats.
Save 84 %!
Zig Zag Memory Fibre Sprung Mattress - All Sizes

NOW

€ 79.99

€ 156.17

Zig Zag Memory Fibre Sprung Mattress - All Sizes

Hypoallergenic: Dust mite resistant and hypoallergenic, this mattress is designed to give you a healthy night's sleep, every night! Memory fibre: Constructed with two layers of high quality visco elastic memory fibre which contours to the body and provides continual support.
Save 49 %!
Ergonomic Memory Foam Mattress - Pressure Relief & Cooling, 4 Sizes

NOW

€ 89.99

€ 154.95

Ergonomic Memory Foam Mattress - Pressure Relief & Cooling, 4 Sizes

Properties: Crafted with hypoallergenic and anti dust mite features. Mattress: Grab yourself a memory foam tufted spring mattress.
Save 42 %!
Bioactive Hypoallergenic Visco-Elastic Memory Foam Mattress - 5 Sizes

NOW

€ 159.00

€ 542.99

Bioactive Hypoallergenic Visco-Elastic Memory Foam Mattress - 5 Sizes

Layered style: The mattress layers are arranged progressively to offer a gradual welcome, achieving personalised rest that adapts to each sleeper's unique morphology. Easy to handle: This mattress includes 4 reinforced side handles for easy manoeuvring while the ultrasonic platform with a luxury finish is complemented by heavy duty smooth binding for enhanced durability.
Save 71 %!
Thermo-Regulating Memory Foam Mattress - Ergonomic, Cooling, 5 Sizes

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€ 139.00

€ 470.99

Thermo-Regulating Memory Foam Mattress - Ergonomic, Cooling, 5 Sizes

Thermoregulatory: The unique mattress provides thermoregulation, ensuring coolness in summer and warmth in winter. This aspect of the mattress gives it antibacterial, anti humidity, and highly breathable qualities.
Save 70 %!
Memory Foam Mattress with Ergonomic Support & Cooling Comfort - All Sizes

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€ 70.99

€ 207.03

Memory Foam Mattress with Ergonomic Support & Cooling Comfort - All Sizes

Adaptive Contouring. Moulds to your body shape for personalised support Low Maintenance. No need to turn; just rotate every few months Motion Isolation. Minimises partner disturbance for uninterrupted rest Superior Pressure Relief.
Save 66 %!
Bed Set with Airbond Mattress & Premium Fabric Headboard - Multiple Sizes

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€ 449.99

€ 709.00

Bed Set with Airbond Mattress & Premium Fabric Headboard - Multiple Sizes

Supportive Mattress: Medium firmness with Bonnell Spring and Airbond filling for optimal back support. Customisable Options: Choose from five sizes and five fabric colours to fit your space and style.
Save 37 %!
Cashmere Black 12-Zone Memory Foam Mattress - Multiple Sizes

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€ 149.00

€ 1187.21

Cashmere Black 12-Zone Memory Foam Mattress - Multiple Sizes

Composition: Comprises of a 5cm thick layer of super soft foam and Biotherm fibres. Duo System technology: Each face provides independent firmness.
Save 87 %!
Hermes Visco Memory Foam Mattress - Pressure Relief & Support (4 Sizes)

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€ 139.00

€ 494.99

Hermes Visco Memory Foam Mattress - Pressure Relief & Support (4 Sizes)

Adaptive comfort technology: Made in Spain, this mattress features advanced visco gel that conforms to your body, providing personalised support and pressure relief for a rejuvenating sleep experience. Breathable and hygienic design: Equipped with a unique open pore structure and 3D fabric, the mattress promotes optimal airflow, prevents humidity buildup, and ensures a cool and dry sleeping environment.
Save 72 %!
Brooklyn Paradise Memory Foam Mattress - Cooling, Pressure Relief, 4 Sizes

NOW

€ 139.00

€ 491.99

Brooklyn Paradise Memory Foam Mattress - Cooling, Pressure Relief, 4 Sizes

Memory foam mattress: Designed to provide luxurious comfort and support, this springless mattress adapts to every movement for a night of uninterrupted, deep sleep. High density core: The springless design keeps the mattress in shape, and helps you enjoy soundless sleep night after night.
Save 72 %!
Max One Orthopaedic Memory Foam Mattress - Pressure Relief & Cooling in 4 Sizes

NOW

€ 149.00

€ 1009.00

Max One Orthopaedic Memory Foam Mattress - Pressure Relief & Cooling in 4 Sizes

Experience advanced cooling technology: Featuring viscoelastic and Viscosoft fibres, this mattress provides superior breathability and moisture control, keeping you cool and comfortable. Discover the ultimate orthopaedic mattress: This mattress, made in Spain, combines advanced technology with premium materials to deliver an exceptional sleeping experience.
Save 85 %!
Royal Premier Pocket Sprung Memory Foam Mattress - Pressure Relief, Multiple Sizes

NOW

€ 179.99

€ 1140.00

Royal Premier Pocket Sprung Memory Foam Mattress - Pressure Relief, Multiple Sizes

Pressure Relieving Comfort: Viscoelastic gel layer adapts to your body for restful, supported sleep. Temperature Regulation: Enhanced airflow design keeps you cool throughout the night.
Save 84 %!
White Zig Zag Memory Foam Mattress - 4 Sizes

NOW

€ 75.99

€ 194.57

White Zig Zag Memory Foam Mattress - 4 Sizes

18cm Depth: Features a 13.5 bonnell gauge open coil spring system. Medium Firmness: Ideal for side sleepers needing extra support.
Save 61 %!
Cool Blue Memory Foam Mattress Topper with Cooling Tech - 10 Sizes

NOW

€ 74.99

€ 144.89

Cool Blue Memory Foam Mattress Topper with Cooling Tech - 10 Sizes

Medium Firm Support: Balanced foam relieves pressure points and supports spinal alignment for restful nights. Hypoallergenic & Anti Bacterial: Designed to reduce allergens and promote a healthier sleep environment.
Save 48 %!
Paradise Pocket Spring Mattress - 5 Sizes

NOW

€ 199.00

€ 572.99

Paradise Pocket Spring Mattress - 5 Sizes

Durability: Reinforced edging with safety stitching ensures long lasting structural integrity. Breathable Design: 3D fabric and micro ventilation channels enhance airflow and reduce humidity, keeping you fresh all night.
Save 65 %!
Graphene Cooling Memory Foam Mattress - 5 Sizes

NOW

€ 189.00

€ 542.99

Graphene Cooling Memory Foam Mattress - 5 Sizes

Graphene Cooling Technology: Infused layers wick away heat for a cooler sleep. Breathable Design: Open pore structure ensures continuous airflow.
Save 65 %!
Memory Foam Extra Deep Spring Mattress - 4 Sizes

NOW

€ 69.99

€ 209.97

Memory Foam Extra Deep Spring Mattress - 4 Sizes

Temperature Regulation: Innovative cooling keeps you comfortable all night. Superior Pressure Relief: Adapts to body contours for a restful sleep.
Save 67 %!
Orthopaedic Memory Foam & Spring Mattress - Pressure Relief, 4 Sizes

NOW

€ 60.99

€ 127.56

Orthopaedic Memory Foam & Spring Mattress - Pressure Relief, 4 Sizes

Dimensions: Please see full details for more information. Spring Mattress: Enjoy a good night sleep with this deep quilted orthopaedic spring mattress!
Save 52 %!

Discover Wowcher UK's best deals on king size mattresses, offering generous 150x200 cm options and even larger 180x200 cm super king sizes to suit spacious bedrooms. Whether you’re upgrading a master suite, furnishing a guest room, or creating a luxurious sleep space for two, a king size mattress brings premium comfort, deeper pressure relief, and lasting support. Explore memory foam king mattresses, latex king mattresses, and hybrid spring designs at discounted prices with flexible delivery and easy returns.


From cooling layers and pressure-relief foams to reinforced edge support and motion isolation, king size mattresses on Wowcher UK are designed to deliver a healthier, deeper sleep. Whether you prefer a plush, medium or firm feel, you’ll find options that align with your sleep style, temperature needs, and budget, all wrapped in compelling deals.


Frequently Asked Questions about King size mattresses

What features should I look for in a king size mattress?


Key features include appropriate firmness level (soft, medium, firm) to suit your sleep position, high-quality memory foam or latex layers for pressure relief, and a resilient base such as an innerspring or pocket-sprung core for strong edge support. Look for cooling properties like gel-infused foams or breathable fabrics to reduce heat buildup. If you share the bed, consider strong motion isolation so you don’t disturb your partner, and verify a comfortable height with adequate edge-to-edge support.
Also check for a balanced support core, durable comfort layers, and a reputable warranty or trial period. King size mattresses often pair with compatible bed frames or foundations, so confirm compatibility and any assembly requirements before purchase.

Which mattress type is best for couples in a king size bed?


For couples, a memory foam king mattress or hybrid king mattress often provides excellent motion isolation, minimizing movement transfer. A latex king mattress offers natural responsiveness and coolness, while a hybrid design combines springs with foam for balanced support and bounce. Consider a medium to medium-firm feel for shared comfort, and look for sectional or zoned support to reduce pressure on hips and shoulders.
Check for a good edge, so you can use the full surface, and ensure the topper or mattress protector is compatible with a king size bed frame. If you want a longer lifespan, select high-density foams and tested winter/summer temperature regulation features to keep both sleepers comfortable year-round.

What does "king size" mean in the UK vs other regions, and which size should I buy?


In the UK, a standard King size mattress typically measures about 150 cm wide by 200 cm long, while Super King reaches around 180 cm by 200 cm. If you’re tall or share with a partner, a larger option can improve overall comfort and movement. In the US, the oversized equivalents differ (king at 76 x 80 inches). Always check the exact dimensions listed in the product description and measure your bed frame to ensure a proper fit.
Consider room size, sheets availability, and how much space you want around the bed for nightstands and movement. If you’re unsure, a 150x200 cm king size is the most common choice and widely supported by frames and bedding, while a 180x200 cm super king provides a more expansive sleeping surface for two.

How thick should a king size mattress be and does thickness affect comfort?


Mattress thickness often ranges from about 25 cm to 40 cm. A thicker mattress can offer more plushness and nuanced support, especially for heavier sleepers or those who prefer deeper contouring. However, thickness alone isn’t the only predictor of comfort—quality comfort foams, spring counts, and edge support matter too. For couples, a 28–32 cm thickness is a popular middle ground that balances comfort with compatibility with most bed frames and foundations.
If you’re shopping on Wowcher UK, read the product details for material blends, warranty coverage, and any included toppers or pillows. Pairing with a compatible bed frame and proper foundation can maximize the mattress’s lifespan and comfort level.

Do king size mattresses come with trial periods, warranties, and returns?


Yes, many king size mattresses on Wowcher UK include trial periods ranging from 30 to 120 nights, allowing you to determine comfort and support in your bedroom. Warranties vary by brand, but common coverage includes manufacturing defects, sagging beyond a set limit, and significant comfort degradation. Always check the terms at checkout, including return windows, restocking fees, and who covers return shipping.
Look for seller policies on exchanges or refunds if the product arrives damaged or defective, and verify whether the trial period applies if you change your mind. A good Wowcher deal will clarify the trial length, conditions, and how to initiate a return or exchange.

What delivery options are common for king size mattresses on Wowcher UK?


Common options include standard delivery for regular orders, express shipping for faster arrival, and free delivery promotions on qualifying mattresses. Some listings offer white-glove delivery or assembly services, click-and-collect in select areas, and scheduled delivery windows to fit your timetable. Always review whether delivery includes packaging removal or setup and whether the frame is included separately.
Tracking and delivery notifications help you plan around your new king size mattress arrival. If you need to arrange a specific delivery date or need help with heavy lifting, check the listing details for available options and any regional restrictions.

What are popular accessories to pair with king size mattresses?


Consider a high-quality mattress topper such as memory foam or latex to fine-tune comfort, a compatible bed frame or foundation for stability, and breathable mattress protectors to extend life. If you sleep hot, look for a cooling mattress topper or a cooling gel foam layer in the mattress. Bedding like fitted sheets, duvet and pillow sets sized for a king bed complete the setup.
Many Wowcher listings also bundle toppers or offer discount codes for bedding, turning a king size sleep upgrade into a complete sleep upgrade at a great price.

How do I choose the best mattress material for a king size bed?


Memory foam king mattresses provide contouring and pressure relief, with optional cooling foams for warmth control. Latex king mattresses offer natural bounce, durability, and breathability, which can be advantageous for couples and hot sleepers. Hybrid king mattresses blend springs with foam layers for a balance of support and responsiveness, often delivering excellent edge support and motion isolation. When selecting, consider your sleeping position (side, back, stomach), weight, and whether you want a firmer or softer feel.
Reviews and trials are helpful—if a mattress doesn’t feel right after a few weeks, leverage the return policy. Also verify cleaning and care requirements to maintain long-term comfort and durability.

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