King Size Mattresses

Luxuriate in pure comfort night after night with a beautiful king size mattress. Beautifully designed and incorporating the latest sleep research, you’ll discover what a good night’s sleep really means. From hand-tufted softness to mouldable memory foam, you’re sure to find the best king size mattress for you.

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Applied filters Clear filters Size King Size Brand Dunlopillo Sealy Silentnight + 2
  • Save £150
    Was £569 Sale £419
    • 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 £30
    Was £299 Sale £269

    A Which? Magazine Best Buy, the Silentnight Mattress-Now 3 Zone memory foam roll up mattress offers wide range of features at a great price.

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  • Save £140
    Was £539 Sale £399

    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 £380
    Was £1499 Sale £1119

    It’s the advanced layers of comfort that make the Silentnight Serenity Cool Lux Gel 3000 Ultra mattress so incredibly comfortable.

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  • Save £180
    Was £699 Sale £519

    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
    Was £619 Sale £459
    • 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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  • Save £270
    Was £1039 Sale £769

    It’s the advanced layers of comfort that make the medium-firm Silentnight Serenity Latex 1400 mattress such a wonderful sleeping experience.

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  • Save £120
    Was £449 Sale £329
    • 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 £40
    Was £359 Sale £319

    The Silentnight Mattress-Now 7 Zone memory foam roll up mattress offers an array of innovative features at an outstanding price.

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  • Save £90
    Was £349 Sale £259
    • Fantastic value spring divan mattress from Silentnight
    • Edge-to-edge support for more personal space with no ‘roll together’
    • The Miracoil® spring system in 3 zones aligns your spine perfectly
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  • Save £300
    Was £1199 Sale £899

    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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  • Save £120
    Was £469 Sale £349

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

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