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King Size Mattresses

Relax in luxurious comfort night after night with a superb king size mattress, beautifully designed and incorporating the latest sleep research. Choose from hand-tufted softness to body-cushioning memory foam and discover what a good night's sleep really means. Shop our range and find the best king mattress for you.

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  • Sale! Plus extra £50 off every £500

    Sale! Extra £50 off for every £500 spent Applied at checkout.
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  • Save £400
    Silentnight Eco Pocket Mattress
    Silentnight Eco Pocket Mattress
    After Sale Price £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 £160
    Silentnight Mirapocket Serenity 1200 Memory Mattress
    Silentnight Mirapocket Serenity 1200 Memory Mattress
    After Sale Price £639 Sale £479
    • 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 £500
    Silentnight Eco Pocket Plus Mattress
    Silentnight Eco Pocket Plus Mattress
    After Sale Price £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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  • Save £350
    Silentnight Eco Firm Mattress
    Silentnight Eco Firm Mattress
    After Sale Price £699 Sale £349

    • 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 £300
    Sealy Latex Pillow Top 1400 Mattress
    Sealy Latex Pillow Top 1400 Mattress
    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 £140
    Silentnight Mirapocket Serenity 1200 Mattress
    Silentnight Mirapocket Serenity 1200 Mattress
    After Sale Price £559 Sale £419

    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 £150
    Silentnight Mirapocket Serenity 1400 Ortho Mattress
    Silentnight Mirapocket Serenity 1400 Ortho Mattress
    After Sale Price £589 Sale £439
    • 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
    Silentnight Miracoil Serenity Memory Cushion Top Mattress
    Silentnight Miracoil Serenity Memory Cushion Top Mattress
    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 £100
    Silentnight Miracoil Serenity Ortho Mattress
    Silentnight Miracoil Serenity Ortho Mattress
    After Sale Price £399 Sale £299

    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 £120
    Silentnight Miracoil Serenity Memory Mattress
    Silentnight Miracoil Serenity Memory Mattress
    After Sale Price £459 Sale £339
    • 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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  • Extra £50 off every £500 spent at checkout
    Save £190
    Silentnight Mirapocket Serenity 2000 Memory Mattress
    Silentnight Mirapocket Serenity 2000 Memory Mattress
    After Sale Price £739 Sale £549

    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 £100
    Silentnight Mattress-Now 3 Zone Memory Foam Roll Up Mattress
    Silentnight Mattress-Now 3 Zone Memory Foam Roll Up Mattress
    After Sale Price £379 Sale £279

    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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