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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.

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  1. SAVE ON MATTRESSES
    Deluxe Memory Spring Rolled Mattress
    Deluxe Memory Spring Rolled Mattress
    (117)
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    RRP From £199.99 Save £80 Now From £119.99
  2. SAVE ON MATTRESSES
    Ocean Gel Pocket 2000 Memory Foam Cool Orthopaedic Mattress
    Ocean Gel Pocket 2000 Memory Foam Cool Orthopaedic Mattress
    (54)
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    RRP From £329.99 Save £150 Now From £179.99
  3. SAVE ON MATTRESSES
    Touch 3-Zone Memory Foam Orthopaedic Rolled Mattress
    Touch 3-Zone Memory Foam Orthopaedic Rolled Mattress
    (84)
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    RRP From £249.99 Save £110 Now From £139.99
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    Touch 7-Zone Memory Foam Orthopaedic Rolled Mattress
    Touch 7-Zone Memory Foam Orthopaedic Rolled Mattress
    (41)
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    RRP From £279.99 Save £130 Now From £149.99
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    Balmoral 3500 Pocket Sprung Memory Foam Mattress
    (89)
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    RRP From £389.99 Save £170 Now From £219.99
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    Maestro Spring Memory Foam Tufted Mattress
    (105)
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    RRP From £269.99 Save £110 Now From £159.99
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    Bamboo Vitality 2000 Pocket Sprung Memory and Reflex Foam Mattress
    (55)
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    RRP From £519.99 Save £250 Was From £289.99 Now From £269.99
  8. SAVE ON MATTRESSES
    Ocean Gel Memory and Reflex Foam Cool Orthopaedic LayGel Mattress
    Ocean Gel Memory and Reflex Foam Cool Orthopaedic LayGel Mattress
    (93)
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    RRP From £329.99 Save £150 Now From £179.99
  9. SAVE ON MATTRESSES
    Membound Memory Foam Spring Mattress
    Membound Memory Foam Spring Mattress
    (60)
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    RRP From £219.99 Save £90 Now From £129.99
  10. SAVE ON MATTRESSES
    Fusion Lite Memory and Reflex Foam Orthopaedic Mattress
    Fusion Lite Memory and Reflex Foam Orthopaedic Mattress
    (13)
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    RRP From £269.99 Save £120 Now From £149.99
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    Cashmere 3000 Pocket Sprung Memory Foam Mattress
    (85)
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    RRP From £399.99 Save £180 Now From £219.99
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    Memflex Spring Memory and Reflex Foam Orthopaedic Mattress
    (55)
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    RRP From £279.99 Save £110 Now From £169.99
  13. SAVE ON MATTRESSES
    Imperial 3500 Pocket Sprung Mattress
    Imperial 3500 Pocket Sprung Mattress
    (26)
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    RRP From £399.99 Save £180 Now From £219.99
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    Aloe Vera 1500 Pocket Sprung Memory and Reflex Foam Mattress
    (54)
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    RRP From £399.99 Save £180 Now From £219.99
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    Pearl Contour Spring Memory Foam Tufted Mattress
    (12)
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    RRP From £279.99 Save £110 Now From £169.99
  16. SAVE ON MATTRESSES
    Impressions 6000 Cool Blue Memory and Reflex Foam Orthopaedic Mattress
    Impressions 6000 Cool Blue Memory and Reflex Foam Orthopaedic Mattress
    (18)
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    RRP From £349.99 Save £150 Now From £199.99
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    Stress Free 1500 Pocket Sprung Memory and Reflex Foam Mattress
    (20)
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    RRP From £379.99 Save £160 Now From £219.99
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    Anti-Bed Bug 1500 Pocket Sprung Memory, Latex and Reflex Foam Pillow Top Mattress
    (16)
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    RRP From £619.99 Save £290 Now From £329.99
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    Milk Vitality 2000 Pocket Sprung Memory, Latex & Reflex Foam Mattress
    (22)
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    RRP From £519.99 Save £230 Now From £289.99
  20. SAVE ON MATTRESSES
    SleepSoul Comfort 800 Pocket Spring Mattress
    SleepSoul Comfort 800 Pocket Spring Mattress
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    RRP From £349.99 Save £150 Now From £199.99
  21. SAVE ON MATTRESSES
    Spring Memory and Reflex Foam Orthopaedic Mattress
    Spring Memory and Reflex Foam Orthopaedic Mattress
    (6)
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    RRP From £299.99 Save £130 Now From £169.99
  22. SAVE ON MATTRESSES
    SleepSoul Orbit Mattress
    SleepSoul Orbit Mattress
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    RRP From £794.99 Save £355 Now From £439.99
  23. SAVE ON MATTRESSES
    SleepSoul Balance 800 Pocket Spring and Memory Foam Mattress
    SleepSoul Balance 800 Pocket Spring and Memory Foam Mattress
    (3)
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    RRP From £449.99 Save £200 Now From £249.99

23 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.