Collection: King Size Mattresses

In the UK, a king size bed is a popular option for those who want a larger sleeping area than a standard double bed. The dimensions of a UK king size bed are typically 150cm x 200cm (5ft x 6ft 6in), which provides ample space for individuals or couples to stretch out comfortably. King size mattresses are available in a range of styles and materials, from traditional wooden frames to modern upholstered designs. When shopping for a king size mattress, it's important to consider factors such as the quality of the mattress, the durability of the frame, and the overall style and design to ensure that it meets your needs and preferences. All our mattresses also come with free UK delivery.

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170 products
  • Sleepsoul Comfort 800 Mattress
    Sleepsoul Comfort 800 Mattress
    Regular price
    £169.95 to £219.95
    Sale price
    £169.95 to £219.95
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  • Deepsleep Chatsworth 1000 Mattress
    Deepsleep Chatsworth 1000 Mattress
    Regular price
    £179.95 to £369.95
    Sale price
    £179.95 to £369.95
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  • Sleepsoul Balance 800 Mattress
    Sleepsoul Balance 800 Mattress
    Regular price
    £149.95 to £239.95
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    £149.95 to £239.95
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  • Baker and Wells Majestic Mattress
    Baker and Wells Majestic Mattress
    Regular price
    £269.95 to £589.95
    Sale price
    £269.95 to £589.95
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  • Sleepsoul Heaven 1000 Mattress
    Sleepsoul Heaven 1000 Mattress
    Regular price
    £184.95 to £349.95
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    £184.95 to £349.95
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  • Deepsleep Bronze 1500 Mattress
    Deepsleep Bronze 1500 Mattress
    Regular price
    £269.95 to £499.95
    Sale price
    £269.95 to £499.95
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  • Komfi Unity Comfort Mattress
    Komfi Unity Comfort Mattress
    Regular price
    £99.95 to £139.95
    Sale price
    £99.95 to £139.95
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  • Baker and Wells Excellence 1000 Pocket Mattress
    Baker and Wells Excellence 1000 Pocket Mattress
    Regular price
    £219.95 to £399.95
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    £219.95 to £399.95
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  • Komfi Unity Visco Ortho Mattress
    Komfi Unity Visco Ortho Mattress
    Regular price
    £129.95 to £189.95
    Sale price
    £129.95 to £189.95
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  • Komfi Unity Regular Mattress
    Komfi Unity Regular Mattress
    Regular price
    £89.95 to £129.95
    Sale price
    £89.95 to £129.95
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  • Gilt Edge Sapphire 2000 Mattress
    Gilt Edge Sapphire 2000 Mattress
    Regular price
    £359.95 to £619.95
    Sale price
    £359.95 to £619.95
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  • Baker and Wells Memory Comfort Mattress
    Baker and Wells Memory Comfort Mattress
    Regular price
    £249.95 to £519.95
    Sale price
    £249.95 to £519.95
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  • Baker and Wells Imperial 2500 Cool Mattress
    Baker and Wells Imperial 2500 Cool Mattress
    Regular price
    £349.95 to £679.95
    Sale price
    £349.95 to £679.95
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  • Sleepeezee Backcare Select 800 Mattress
    Sleepeezee Backcare Select 800 Mattress
    Regular price
    £299.00 to £699.00
    Sale price
    £299.00 to £699.00
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  • Postureflex Crystal Mattress
    Postureflex Crystal Mattress
    Regular price
    £269.95 to £479.95
    Sale price
    £269.95 to £479.95
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  • Postureflex Flex 150 Foam Mattress
    Postureflex Flex 150 Foam Mattress
    Regular price
    £149.95 to £299.95
    Sale price
    £149.95 to £299.95
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  • Sleepeezee Memory Comfort 1000 Mattress
    Sleepeezee Memory Comfort 1000 Mattress
    Regular price
    £399.00 to £699.00
    Sale price
    £399.00 to £699.00
    Unit price
    per 
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  • Deepsleep Premier Rest 1000 Mattress
    Deepsleep Premier Rest 1000 Mattress
    Regular price
    £329.95 to £569.95
    Sale price
    £329.95 to £569.95
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King mattresses are a popular choice for those who desire a spacious and comfortable sleep surface. With dimensions typically measuring 150cm x 200cm (5ft x 6ft 6in) in the UK, a king mattress offers ample room for individuals or couples to stretch out and enjoy a restful night's sleep.

One of the primary benefits of a king mattress is the generous sleeping area it provides. Whether you sleep alone or share the bed with a partner, a king mattress ensures that you have plenty of space to move around and find your most comfortable sleeping position. This extra space reduces the likelihood of feeling cramped or confined during the night, allowing for a more relaxed and uninterrupted sleep.

For couples, king mattresses are particularly advantageous as they offer enough room for both individuals to have their own sleeping space. This minimises disturbances caused by movements during the night, ensuring a better night's sleep for both partners. It also provides the opportunity to customise each side of the mattress to meet the specific comfort and support needs of each person. Dual firmness options are available, allowing each partner to have their preferred level of firmness or support, catering to their individual requirements.

In addition to the spaciousness they provide, king mattresses are available in a wide range of styles and materials to suit different preferences. From traditional coil spring mattresses to memory foam, latex, or hybrid options, there is a king mattress to cater to various comfort preferences and sleep needs. These mattresses are designed to offer excellent support, pressure relief, and spinal alignment, promoting healthy sleep and reducing the likelihood of waking up with aches and pains.

King mattresses also offer aesthetic benefits. They serve as a focal point in the bedroom, enhancing the overall decor with their larger size and presence. Whether it's a sleek and modern design or a luxurious and ornate style, a king mattress adds a touch of elegance and sophistication to the bedroom.

Furthermore, king mattresses are often constructed using high-quality materials and advanced technologies. They may feature features such as pocket springs, which provide targeted support and minimise motion transfer, ensuring that movements from one side of the bed do not disturb the other. Some king mattresses also incorporate cooling technologies to regulate body temperature, promoting a cool and comfortable sleep environment.