HealthopaedicBreasleySleepeezeeSealyRest AssuredSilentnightMyersMillbrook

Reset All

Mattress Guide

Can't find what you want?


Friendly UK Call Centre

Finance

Reduced to Clear

Price Promise

Seven Year Hitch

More information:

Free Delivery

Visit Us

Backcare Extreme KingsizeRest Assured Healy Backcare King Size MattressSilentnight Pocket Essentials 1000 Memory King
Find exactly what you want, use our search filter to refine your results

King Size Mattresses

Wake up feeling refreshed every morning after a night on one of our king size mattresses. With the many advantages of restful sleep, from improved concentration to health benefits, a new king size mattress has to be one of the best investments you could make.

Our 5ft king size mattresses range from open-coil memory foam, no-turn mattresses to the superlative support of our orthopaedic mattresses and responsive pocket sprung mattresses with luxurious fillings. With a range of options from some of the top bed manufacturers, you are sure to find the king size mattress to suit your needs.

170 item(s) of 6 View All
Items per page
  1. Dorlux Camelot King Size Mattress Posture Pocket
    2 in stock, delivery in 1-5 working days, more due

    Dorlux Camelot King Size Mattress Posture Pocket

    NO-STICKER
    £199.99 was £399.99
  2. Healthopaedic Organic Cotton King Size Latex Mattress - Medium
    2 in stock, delivery in 1-5 working days, more due

    Healthopaedic Organic Cotton King Size Latex Mattress - Medium

    STARBUY
    £299.99 was £599.99
  3. Silentnight Ortho Dream King Size Mattress
    10+ in stock, delivery in 1-5 working days

    Silentnight Ortho Dream King Size Mattress

    NO-STICKER
    £209.99 was £299.99
  4. Emerald Orthopaedic King Size Mattress - Very Firm
    2 in stock, delivery in 1-5 working days, more due

    Emerald Orthopaedic King Size Mattress - Very Firm

    NO-STICKER
    £269.99 was £404.99
  5. Sleepeezee Backcare Extreme King Size Mattress - Firm
    4 in stock, delivery in 1-5 working days, more due

    Sleepeezee Backcare Extreme King Size Mattress - Firm

    DOUBLE-DISC
    £279.99 was £502.49
  6. Sleepeezee Backcare Ultimate 2000 Gold King Size Mattress
    10+ in stock, delivery in 1-5 working days

    Sleepeezee Backcare Ultimate 2000 Gold King Size Mattress

    DOUBLE-DISC
    £399.99 was £689.99
    £2.36per week
  7. Sleepeezee Sonata 2000 King Size Mattress
    9 in stock, delivery in 1-5 working days, more due

    Sleepeezee Sonata 2000 King Size Mattress

    STARBUY
    £399.99 was £599.99
    £2.36per week
  8. Sleepeezee Cool Comfort 2000 Breeze King Size Memory Foam Mattress
    10+ in stock, delivery in 1-5 working days

    Sleepeezee Cool Comfort 2000 Breeze King Size Memory Foam Mattress

    DOUBLE-DISC
    £499.99 was £854.99
    £2.95per week
  9. Sealy Support Firm King Size Mattress
    6 in stock, delivery in 1-5 working days, more due

    Sealy Support Firm King Size Mattress

    NO-STICKER
    £209.99 was £299.99
  10. Rest Assured Tivoli King Size Memory Foam Mattress
    2 in stock, delivery in 1-5 working days, more due

    Rest Assured Tivoli King Size Memory Foam Mattress

    NO-STICKER
    £194.99 was £292.49
  11. Rest Assured Novaro Ortho King Size Mattress
    1 in stock, delivery in 1-5 working days, more due

    Rest Assured Novaro Ortho King Size Mattress

    NO-STICKER
    £289.99 was £434.99
  12. Silentnight Seoul King Size Memory Foam Mattress
    3 in stock, delivery in 1-5 working days, more due

    Silentnight Seoul King Size Memory Foam Mattress

    NO-STICKER
    £264.99 was £382.49
  13. Silentnight Oslo King Size Memory Foam Mattress
    1 in stock, delivery in 1-5 working days, more due

    Silentnight Oslo King Size Memory Foam Mattress

    NO-STICKER
    £309.99 was £446.24
    £1.83per week
  14. Myers Pocket Fleetwood Memory Foam King Size Mattress
    7 in stock, delivery in 1-5 working days, more due

    Myers Pocket Fleetwood Memory Foam King Size Mattress

    NO-STICKER
    £319.99 was £479.99
    £1.89per week
  15. Sealy Jubilee Latex King Size Latex Foam Mattress
    8 in stock, delivery in 1-5 working days, more due

    Sealy Jubilee Latex King Size Latex Foam Mattress

    STARBUY
    £299.99 was £524.99
  16. Sealy Millionaire Ortho King Size Mattress
    3 in stock, delivery in 1-5 working days, more due

    Sealy Millionaire Ortho King Size Mattress

    STARBUY
    £279.99 was £427.99
  17. Rest Assured Classic 800 Restapocket King size Mattress
    3 in stock, delivery in 1-5 working days, more due

    Rest Assured Classic 800 Restapocket King size Mattress

    NO-STICKER
    £149.99 was £399.99
  18. Silentnight Mattress Now 7 Zone King Size Memory Foam Mattress
    10+ in stock, delivery in 1-5 working days

    Silentnight Mattress Now 7 Zone King Size Memory Foam Mattress

    STARBUY
    £229.99 was £459.99
  19. Sealy Ortho Elite King Size Mattress
    10+ in stock, delivery in 1-5 working days

    Sealy Ortho Elite King Size Mattress

    FC-EXC
    £249.99 was £427.99
  20. Rest Assured Bella 1400 Pocket King Size Mattress
    Delivery in 7-14 working days

    Rest Assured Bella 1400 Pocket King Size Mattress

    £299.99 was £449.99
  21. Rest Assured Pistachio Ortho 1400 Pocket King Size Mattress
    Delivery in 7-14 working days

    Rest Assured Pistachio Ortho 1400 Pocket King Size Mattress

    £299.99 was £449.99
  22. Rest Assured Tara 2000 Pocket King Size Mattress
    1 in stock, delivery in 1-5 working days, more due

    Rest Assured Tara 2000 Pocket King Size Mattress

    £329.99 was £494.99
    £1.95per week
  23. Rest Assured Modena King Size Mattress
    2 in stock, delivery in 1-5 working days, more due

    Rest Assured Modena King Size Mattress

    £159.99 was £239.99
  24. Rest Assured Genoa King Size Mattress
    2 in stock, delivery in 1-5 working days, more due

    Rest Assured Genoa King Size Mattress

    £259.99 was £389.99
  25. Rest Assured Savona King Size Mattress
    2 in stock, delivery in 1-5 working days, more due

    Rest Assured Savona King Size Mattress

    £259.99 was £389.99
  26. Sealy Cumbrian Meadow King Size Mattress
    3 in stock, delivery in 1-5 working days, more due

    Sealy Cumbrian Meadow King Size Mattress

    £399.99 was £749.99
    £2.36per week
  27. Sealy Madeline King Size Mattress
    2 in stock, delivery in 1-5 working days, more due

    Sealy Madeline King Size Mattress

    £479.99 was £824.99
    £2.83per week
  28. Sealy Autumn Mist King Size Mattress
    Delivery in 7-14 working days

    Sealy Autumn Mist King Size Mattress

    £599.99 was £899.99
    £3.54per week
  29. Sealy Francesca King Size Mattress
    1 in stock, delivery in 1-5 working days, more due

    Sealy Francesca King Size Mattress

    £559.99 was £794.99
    £3.30per week
  30. Sealy Sophia King Size Mattress
    Delivery in 7-14 working days

    Sealy Sophia King Size Mattress

    £659.99 was £989.99
    £3.89per week
170 item(s) of 6 View All
Items per page

Once you have selected your king size mattress, it’s quick and easy to order online, choosing your delivery date at checkout. We offer free delivery to most parts of mainland UK, but if you have any queries on your mattress, payment options or delivery, please pick up the phone and call our helpful staff on 0800 035 0070.