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 Sealy Silentnight Sleep Story + 2
  • 50% off
    Save £500
    Was £999 Sale £499

    • 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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  • 50% off
    Save £400
    Was £799 Sale £399

    • 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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  • Save £170
    Was £659 Sale £489

    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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  • Save £170
    Was £669 Sale £499
    • 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 1000 zoned pocket springs
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  • Save £130
    Was £489 Sale £359

    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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  • Save £200
    Was £789 Sale £589

    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 £170
    Was £669 Sale £499
    • 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 £100
    Was £399 Sale £299

    Offering layers of superb comfort, the Sleep Story pocket 1000 mattress is a great-value, intelligently designed roll up mattress.

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  • Save £140
    Was £539 Sale £399

    If you like a firmer mattress, you’ll sleep better on the hypoallergenic Sealy Activsleep Ortho Extra Firm mattress.

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  • Save £370
    Was £1469 Sale £1099

    The technologically-advanced hypoallergenic Sealy Latex 2200 mattress combines soft, pressure relieving latex with responsive pocket springs.

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  • Save £220
    Was £869 Sale £649

    Wonderfully comfortable and supportive, the hypoallergenic Sealy Activsleep Memory Pocket 2400 mattress offers the support of pocket springs plus memory foam’s body-contouring comfort.

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  • Special Buy £489

    If you like the feel of a traditional mattress, you’ll love the Sleep Story Ortho Pocket 1000 mattress.

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