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King Size Memory Foam Mattresses

King size memory foam mattresses are the solution to almost all sleeping problems. Tired of feeling like you and your partner are sharing a sleeping bag? Then try out a king size foam mattress which matches plenty of space with comfort designed around your body shape and sleeping habits.

By coupling freedom of movement with a responsive foam design, Happy Beds guarantees that you and your partner will never face a tug of war over space again.

Sleep Like Royalty

It’s difficult to imagine having any sleep issues on a king-sized mattress. With memory foam’s NASA-backed science behind it, you can guarantee that our king size memory foam mattress will deliver a sleep that’s out of this world.

Browse below for the best in king size memory foam mattresses.

22 Items

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  1. 46% OFF
    September Sale
    Deluxe Memory Spring Rolled Mattress
    Deluxe Memory Spring Rolled Mattress

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    Medium
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    RRP From £174.99 Now From £94.99
  2. 45% OFF
    September Sale
    Ocean Gel Memory and Reflex Foam Cool Orthopaedic LayGel Mattress
    Ocean Gel Memory and Reflex Foam Cool Orthopaedic LayGel Mattress

    Soft
    Medium
    Firm
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    RRP From £279.99 Now From £154.99
  3. 45% OFF
    September Sale
    Touch 3-Zone Memory Foam Orthopaedic Rolled Mattress
    Touch 3-Zone Memory Foam Orthopaedic Rolled Mattress

    Soft
    Medium
    Firm
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    RRP From £219.99 Now From £119.99
  4. 45% OFF
    September Sale
    Touch 7-Zone Memory Foam Orthopaedic Rolled Mattress
    Touch 7-Zone Memory Foam Orthopaedic Rolled Mattress

    Soft
    Medium
    Firm
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    RRP From £234.99 Now From £129.99
  5. 45% OFF
    September Sale
    1
    Balmoral 3500 Pocket Sprung Memory Foam Mattress

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    Medium
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    RRP From £344.99 Now From £189.99
  6. 42% OFF
    September Sale
    1
    Maestro Spring Memory Foam Tufted Mattress

    Soft
    Medium
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    RRP From £239.99 Now From £139.99
  7. 45% OFF
    September Sale
    1
    Cashmere 3000 Pocket Sprung Memory Foam Mattress

    Soft
    Medium
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    RRP From £354.99 Now From £194.99
  8. 42% OFF
    September Sale
    Membound Memory Foam Spring Mattress
    Membound Memory Foam Spring Mattress

    Soft
    Medium
    Firm
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    RRP From £189.99 Now From £109.99
  9. 45% OFF
    September Sale
    1
    Aloe Vera 1500 Pocket Sprung Memory and Reflex Foam Mattress

    Soft
    Medium
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    RRP From £354.99 Now From £194.99
  10. 42% OFF
    September Sale
    1
    Memflex Spring Memory and Reflex Foam Orthopaedic Mattress

    Soft
    Medium
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    RRP From £249.99 Now From £144.99
  11. 49% OFF
    September Sale
    1
    Bamboo Vitality 2000 Pocket Sprung Memory and Reflex Foam Mattress

    Soft
    Medium
    Firm
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    RRP From £459.99 Now From £234.99
  12. 45% OFF
    September Sale
    Imperial 3500 Pocket Sprung Mattress
    Imperial 3500 Pocket Sprung Mattress

    Soft
    Medium
    Firm
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    RRP From £354.99 Now From £194.99
  13. 45% OFF
    September Sale
    Fusion Lite Memory and Reflex Foam Orthopaedic Mattress
    Fusion Lite Memory and Reflex Foam Orthopaedic Mattress

    Soft
    Medium
    Firm
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    RRP From £219.99 Now From £119.99
  14. 45% OFF
    September Sale
    Impressions 6000 Cool Blue Memory and Reflex Foam Orthopaedic Mattress
    Impressions 6000 Cool Blue Memory and Reflex Foam Orthopaedic Mattress

    Soft
    Medium
    Firm
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    RRP From £309.99 Now From £169.99
  15. 45% OFF
    September Sale
    Spring Memory and Reflex Foam Orthopaedic Mattress
    Spring Memory and Reflex Foam Orthopaedic Mattress

    Soft
    Medium
    Firm
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    RRP From £264.99 Now From £144.99
  16. 45% OFF
    September Sale
    SleepSoul Balance 800 Pocket Spring and Memory Foam Mattress
    SleepSoul Balance 800 Pocket Spring and Memory Foam Mattress

    Soft
    Medium
    Firm
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    RRP From £334.99 Now From £184.99
  17. 48% OFF
    September Sale
    1
    Anti-Bed Bug 1500 Pocket Sprung Memory, Latex and Reflex Foam Pillow Top Mattress

    Soft
    Medium
    Firm
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    RRP From £554.99 Now From £289.99
  18. 42% OFF
    September Sale
    1
    Pearl Contour Spring Memory Foam Tufted Mattress

    Soft
    Medium
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    RRP From £249.99 Now From £144.99
  19. 45% OFF
    September Sale
    1
    Milk Vitality 2000 Pocket Sprung Memory, Latex and Reflex Foam Mattress

    Soft
    Medium
    Firm
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    RRP From £459.99 Now From £254.99
  20. 42% OFF
    September Sale
    1
    Stress Free 1500 Pocket Sprung Memory and Reflex Foam Mattress

    Soft
    Medium
    Firm
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    RRP From £334.99 Now From £194.99
  21. 45% OFF
    September Sale
    SleepSoul Harmony Memory Foam Pocket Spring Mattress
    SleepSoul Harmony Memory Foam Pocket Spring Mattress

    Soft
    Medium
    Firm
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    RRP From £414.99 Now From £229.99

22 Items

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If you like to sleep in complete comfort whilst also being provided a strong support then a memory foam mattress is the perfect solution. Using innovative memory foam, this kind of mattress will mould to your body throughout the night using your body heat to help alleviate pressure on your body.

Our king size memory foam mattresses combine this innovative foam alongside other fillings such as pocket springs, open coil springs or springless reflex foam to provide the ultimate sleep.

A king size mattress is 150cm x 200cm / 5ft x 6ft6 in total, providing you with plenty of space to stretch out and get a great night's sleep. Whether you're a solo sleeper who wants to make the use of a larger bedroom or a couple wanting a little more space, a king size mattress is the perfect choice.

With a history that dates as far back as 1966, the benefits of memory foam have long been known. Find out what all the hype is about and choose a king size memory foam mattress today from Happy Beds.

Read our mattress buying guide to help you find the right mattress for you. We???ll talk you through the various types of fillings and ways to protect your mattress and keep it functioning for many years to come.