King Size Mattresses 5ft

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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Brand Sealy Size King Size
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Brand Sealy Size King Size
  • Delivered in 28 days
    23% OFF
    Save £450
    Was £1999 Sale £1549

    Offering layer upon layer of unique sleep technology, the firm-feel mattress in our Elevate mattress range delivers superior support, targeted pressure relief and copper-infused graphite foam. Handmade.

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  • Delivered in 28 days
    22% OFF
    Save £600
    Was £2749 Sale £2149

    The promise of better sleep? It’s fulfilled every night when you choose this superior soft-feel Sealy mattress with copper-infused graphite foam, innovative two-step support, sumptuous pillow top and more.

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    Soft
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  • Delivered in 28 days
    21% OFF
    Save £500
    Was £2449 Sale £1949

    There’s nothing average about this medium-feel mattress. Designed to elevate your quality of sleep, it features advanced sleep technology, a cushiony pillow top and copper-infused graphite foam.

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    Medium
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  • Delivered in 28 days
    Special Buy £679

    This fantastic mattress features Sealy’s proprietary PostureTech spring system for really great support. The springs react to your body weight and movement for personalised comfort.

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    Medium
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  • Delivered in 28 days
    Special Buy £899

    It’s the combination of individually pocketed springs, a pressure-relieving gel layer and a luxurious pillowtop that makes this handmade Sealy mattress so special.

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    Medium
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  • Delivered in 28 days
    Special Buy £499

    With a built-in powerpack for targeted lumbar pain relief and Sealy’s PostureTech Ortho spring system at its core, this incredible-value double-sided mattress promises better sleep.

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    Extra firm
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  • Delivered in 28 days
    Special Buy £699

    You can count on Sealy for value and comfort. The Sealy Sterling mattress has personalised pocket spring support, cushioning Geltex filling and a smooth quilted surface.

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  • Delivered in 28 days
    Special Buy £599

    Superb support and exceptional comfort that precisely adapts to your body’s weight and movement – that’s the beauty of the great-value Sealy Claremont mattress.

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    Medium
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  • Delivered in 28 days
    Special Buy £529

    If you suffer from back pain, this mattress is for you. Offering medium support with the comfort of memory foam, it has a built-in powerpack for targeted lumbar pain relief.

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    Medium
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