King Size Memory Foam Mattresses

Many people find that memory foam mattresses offer that perfect combination of body-conforming softness and pressure relief. Choose from our selection of king size memory foam mattresses for superior support and luxurious comfort.

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  • EXTRA £100 off
    Save £950
    Was £2799 Sale £1949 Extra Birthday Offer £1849

    Superbly soft but with wonderful support, the Tempur® Cloud Elite mattress is, indeed, like sleeping on a cloud.

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  • EXTRA £100 off
    Save £1140
    Was £3459 Sale £2419 Extra Birthday Offer £2319

    Tempur’s most sumptuous firmer-feel mattress, the Tempur® Original Luxe mattress has luxuriously deep layers – 9cm of Tempur Support material and 5cm of Tempur Comfort material. 

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  • Save £220
    RRP £719 Sale £499
    • Exceptionally comfortable memory foam roll-up mattress from Myers
    • A winning combination of foam and body moulding memory foam
    • 22.5cm deep, with a high-density foam core for maximum support
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  • EXTRA £100 off
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    Was £3459 Sale £2419 Extra Birthday Offer £2319

    Like resting on the softest cloud, the Tempur® Cloud Luxe mattress is a sumptuous sleeping experience.

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  • EXTRA £100 off
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    Was £2799 Sale £1949 Extra Birthday Offer £1849

    If you like a bouncier mattress feel but want body-contouring support, the Tempur® Sensation Elite mattress could be the one for you.

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  • EXTRA £100 off
    Save £850
    Was £2499 Sale £1749 Extra Birthday Offer £1649

    The name says it all. Providing incredible softness with support, the Tempur® Cloud Supreme mattress is like sleeping on a cloud.

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  • EXTRA £100 off
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    Was £2799 Sale £1949 Extra Birthday Offer £1849

    The Tempur® Original Elite mattress offers firmer-feel support along with an incredible feeling of weightless comfort.

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  • EXTRA £100 off
    Save £850
    Was £2499 Sale £1749 Extra Birthday Offer £1649

    The Tempur® Sensation Supreme mattress offers a unique combination of layers for a sleep sensation like no other. 

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  • EXTRA £100 off
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    Was £2499 Sale £1749 Extra Birthday Offer £1649

    Nothing feels quite like a Tempur® mattress and the Tempur Original Supreme mattress is no exception.

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  • EXTRA £100 off
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    Was £3459 Sale £2419 Extra Birthday Offer £2319

    The Tempur® Sensation Luxe mattress feels sensational. And it’s all thanks to Tempur’s commitment to innovation.

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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 £300
    Was £1199 Sale £899

    Redefining the roll-up mattress, the Mammoth Rise Ultimate mattress offers exceptional comfort that arrives conveniently rolled up and ready to use in just two hours.

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Our memory foam mattress collection showcases the cutting-edge of mattress technology. Many of our mattresses offer unique castellated foam that will soothe away those aches and pains by relieving pressure and promoting better spinal alignment.

Our king size memory foam mattresses offer both size and support, perfect if you like to stretch out and even better if you want a mattress that's designed to relieve pressure points and even back and neck ache. They're often easy to take care of too, with soft and breathable outer covers that are washable.

Our most advanced mattresses facilitate a restful night's sleep using patented sleep technology; some even have three layers of breathable memory foam combined with supportive pocket springs. Browse our complete selection of king size beds and give your sleeping space a complete revamp.