Super King Mattresses

Discover a roomy super king mattress that supports and pampers you all night long. With our outstanding range of luxury fillings and premium designs, you're sure to find the right comfort level for you. Choose from pocket sprung mattresses, pressure-relieving memory foam and more. The mattresses in our collection of super king size mattresses promise comfort night after night.

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Applied filters Clear filters Size Super King Brand Millbrook Beds Sealy Silentnight + 2
  • Sale! Plus extra £50 off every £500

    Sale! Extra £50 off for every £500 spent Applied at checkout.
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  • Save £450
    After Sale Price £899 Sale £449

    • Great value eco-friendly mattress with 800 zoned pocket springs 
    • Temperature regulating, hypoallergenic Eco Comfort Fibre™ layer
    • Innovative comfort layer made from 100% recycled bottles

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  • Extra £50 off every £500 spent at checkout
    Save £190
    After Sale Price £759 Sale £569
    • Fantastic value pocket spring and memory foam mattress from Silentnight
    • Edge-to-edge support means more sleep space with no ‘roll together’
    • Mirapocket technology with 1200 zoned pocket springs
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  • Extra £50 off every £500 spent at checkout
    Save £550
    After Sale Price £1099 Sale £549

    • Luxuriously comfy eco-friendly mattress at a great value price 
    • Temperature regulating, hypoallergenic Eco Comfort Fibre™ layer
    • 800 zoned pocket springs plus 1000 responsive mini-springs

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  • Save £400
    After Sale Price £799 Sale £399

    • Firm feel, amazing value, eco-friendly mattress 
    • Miracoil springs offer edge to edge support
    • Breathable fillings made from recycled bottles

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  • Extra £50 off every £500 spent at checkout
    Save £340
    Was £1339 Sale £999

    Handcrafted in Britain, the Sealy Latex Pillow Top 1400 mattress shows careful craftsmanship and commitment to luxurious comfort from top to bottom – from the cushiony pillow top and soft knitted cover through to the layers of latex and 1400 individually-responsive pocket springs in king size. 

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  • Extra £50 off every £500 spent at checkout
    Save £170
    After Sale Price £679 Sale £509

    The Silentnight Mirapocket Serenity 1200 mattress is an award winner and it’s easy to see why. Rated a Best Buy by Which?, it scores top marks for comfort as well as value.

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  • Extra £50 off every £500 spent at checkout
    Save £180
    After Sale Price £699 Sale £519
    • Fantastic value Silentnight Mirapocket Serenity Ortho mattress
    • Edge-to-edge support means more sleep space with no ‘roll together’
    • Mirapocket technology with 1400 zoned pocket springs
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  • Save £140
    After Sale Price £539 Sale £399
    • Fantastic value spring and memory foam mattress from Silentnight
    • Edge-to-edge support, more personal space, no ‘roll together’
    • Miracoil zoned spring system aligns your spine perfectly
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  • Save £130
    After Sale Price £509 Sale £379

    Offering outstanding orthpaedic support with an extra firm feel, the Silentnight Miracoil Serenity Ortho mattress is your kind of comfort at a fantastic value price.

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  • Extra £50 off every £500 spent at checkout
    Save £230
    After Sale Price £849 Sale £619

    Top to bottom and side to side, the Silentnight Mirapocket Serenity 2000 Memory mattress provides incredible comfort at a fantastic value price.

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  • Save £160
    After Sale Price £639 Sale £479
    • Fantastic value spring and memory foam mattress from Silentnight
    • Edge-to-edge support, more personal space, no ‘roll together’
    • Miracoil zoned spring system aligns your spine perfectly

     

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  • Save £170
    Was £669 Sale £499

    Advanced sleep technology ensures that the Sealy Activsleep Ortho Posture Pillow Top mattress is the perfect combination of pressure-relieving support and comfortable softness.

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