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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

per page
  1. 46% OFF
    June Sale
    Deluxe Memory Spring Rolled Mattress
    Deluxe Memory Spring Rolled Mattress

    Soft
    Medium
    Firm
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    RRP From £174.99 Now From £94.99
  2. 45% OFF
    June Sale
    1
    Cashmere 3000 Pocket Sprung Memory Foam Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £354.99 Now From £194.99
  3. 45% OFF
    June Sale
    1
    Balmoral 3500 Pocket Sprung Memory Foam Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £344.99 Now From £189.99
  4. 45% OFF
    June Sale
    Touch 3-Zone Memory Foam Orthopaedic Rolled Mattress
    Touch 3-Zone Memory Foam Orthopaedic Rolled Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £219.99 Now From £119.99
  5. 45% OFF
    June Sale
    Ocean Gel Memory and Reflex Foam Cool Orthopaedic LayGel Mattress
    Ocean Gel Memory and Reflex Foam Cool Orthopaedic LayGel Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £279.99 Now From £154.99
  6. 42% OFF
    June Sale
    1
    Memflex Spring Memory and Reflex Foam Orthopaedic Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £249.99 Now From £144.99
  7. 45% OFF
    June Sale
    Touch 7-Zone Memory Foam Orthopaedic Rolled Mattress
    Touch 7-Zone Memory Foam Orthopaedic Rolled Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £234.99 Now From £129.99
  8. 42% OFF
    June Sale
    Membound Memory Foam Spring Mattress
    Membound Memory Foam Spring Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £189.99 Now From £109.99
  9. 42% OFF
    June Sale
    1
    Maestro Spring Memory Foam Tufted Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £239.99 Now From £139.99
  10. 45% OFF
    June Sale
    Fusion Lite Memory and Reflex Foam Orthopaedic Mattress
    Fusion Lite Memory and Reflex Foam Orthopaedic Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £219.99 Now From £119.99
  11. 45% OFF
    June Sale
    Imperial 3500 Pocket Sprung Mattress
    Imperial 3500 Pocket Sprung Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £354.99 Now From £194.99
  12. 45% OFF
    June Sale
    1
    Aloe Vera 1500 Pocket Sprung Memory and Reflex Foam Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £354.99 Now From £194.99
  13. 49% OFF
    June Sale
    1
    Bamboo Vitality 2000 Pocket Sprung Memory and Reflex Foam Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £459.99 Now From £234.99
  14. 48% OFF
    June Sale
    1
    Anti-Bed Bug 1500 Pocket Sprung Memory, Latex and Reflex Foam Pillow Top Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £554.99 Now From £289.99
  15. 44% OFF
    June Sale
    Sleep Soul Balance 800 Pocket Spring and Memory Foam Mattress
    Sleep Soul Balance 800 Pocket Spring and Memory Foam Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £314.99 Now From £174.99
  16. 45% OFF
    June Sale
    1
    Milk Vitality 2000 Pocket Sprung Memory, Latex and Reflex Foam Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £459.99 Now From £254.99
  17. 45% OFF
    June Sale
    Spring Memory and Reflex Foam Orthopaedic Mattress
    Spring Memory and Reflex Foam Orthopaedic Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £264.99 Now From £144.99
  18. 45% OFF
    June Sale
    Impressions 6000 Cool Blue Memory and Reflex Foam Orthopaedic Mattress
    Impressions 6000 Cool Blue Memory and Reflex Foam Orthopaedic Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £309.99 Now From £169.99
  19. 45% OFF
    June Sale
    Sleep Soul Comfort 800 Pocket Spring Mattress
    Sleep Soul Comfort 800 Pocket Spring Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £299.99 Now From £164.99
  20. 42% OFF
    June Sale
    1
    Pearl Contour Spring Memory Foam Tufted Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £249.99 Now From £144.99
  21. 42% OFF
    June Sale
    1
    Stress Free 1500 Pocket Sprung Memory and Reflex Foam Mattress

    Soft
    Medium
    Firm
    theme_config_price
    RRP From £334.99 Now From £194.99

22 Items

per page