Cheap King Size Mattresses (5’)

At 150cm wide by 200cm long king size mattresses are designed to fit on UK standard king size bed frames. Here at BedzRus we have a wide range of cheap king size mattresses available, including standard sprung, luxury pocket sprung and memory foam mattresses. We have grouped all our mattresses into firmness categories for your convenience. Our range of king size mattresses include leading brands such as Sweet Dreams, Vogue Beds, Breasley and many more, all at very competitive prices which can assure great value. With our free pre-bookable delivery service, you can be assured of a speedy delivery time of your new mattress.
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  1. Luxury King Size Mattress Mattress firmness

    Luxury King Size Mattress

    £129.99
    RRP: £219.99 | Save £90.00 (41%)
    • Layer of High Density Base Foam
    • Layer of Memory Foam
    • Anti-bacterial
    Made in the UK
  2. Sareer Orthopaedic King Size Mattress Mattress firmness

    Sareer Orthopaedic King Size Mattress

    £129.99
    RRP: £179.99 | Save £50.00 (27%)
    Next Day Delivery Available
    • Open coil spring unit
    • Quilted panel and border
    • Damask fabric cover
  3. Sareer Orthopaedic Memory King Size Mattress Mattress firmness

    Sareer Orthopaedic Memory King Size Mattress

    £139.99
    RRP: £199.99 | Save £60.00 (30%)
    Next Day Delivery Available
    • 12mm memory foam
    • Open coil spring unit
    • Back support
    Best Seller Made in the UK
  4. Orthorest King Size Mattress Mattress firmness

    Orthorest King Size Mattress

    £149.99
    RRP: £219.99 | Save £70.00 (31%)
    FREE bookable delivery
    • Totally hypoallergenic fillings
    • Deep quilted mattress
    • King size mattress
    Made in the UK
  5. Reflex Plus Coil King Size Mattress Mattress firmness

    Reflex Plus Coil King Size Mattress

    £149.99
    RRP: £199.99 | Save £50.00 (25%)
    Next Day Delivery Available
    • Open coil spring unit
    • 1 inch reflex foam
    • Tufted
  6. Sussex King Size Mattress Mattress firmness

    Sussex King Size Mattress

    £159.99
    RRP: £235.99 | Save £76.00 (32%)
    Next Day Delivery Available
    • Luxury fillings
    • Hand tufted for even support
    • King size mattress
    Made in the UK
  7. Oxford King Size Mattress Mattress firmness

    Oxford King Size Mattress

    £159.99
    RRP: £269.99 | Save £110.00 (40%)
    Next Day Delivery Available
    • 12.5g Orthopaedic unit
    • 6 Gauge frame
    • No turn mattress
    Made in the UK
  8. Gel Relax Open Coil King Size Mattress Mattress firmness

    Gel Relax Open Coil King Size Mattress

    £179.99
    RRP: £269.99 | Save £90.00 (33%)
    Next Day Delivery Available
    • Open coil mattress
    • Gel Feel Foam
    • Quilted mattress border
  9. Derby King Size Mattress Mattress firmness

    Derby King Size Mattress

    £189.99
    RRP: £289.99 | Save £100.00 (34%)
    • 12.5g Active support bonnell unit
    • Rod edge
    • Quality damask
    Made in the UK
  10. Sareer Pocket Memory King Size Mattress Mattress firmness

    Sareer Pocket Memory King Size Mattress

    £189.99
    RRP: £299.99 | Save £110.00 (36%)
    Next Day Delivery Available
    • Pocket spring unit
    • 12.5mm layer of memory foam
    • Damask stretch fabric cover
  11. Sareer Cool Blue Pocket Memory King Size Mattress Mattress firmness

    Sareer Cool Blue Pocket Memory King Size Mattress

    £189.99
    RRP: £299.99 | Save £110.00 (36%)
    Next Day Delivery Available
    • Pocket spring unit
    • 12.5mm layer of Blue Cool memory foam
    • Tufted mattress
  12. Neptune Luxury King Size Mattress Mattress firmness

    Neptune Luxury King Size Mattress

    £194.99
    RRP: £299.99 | Save £105.00 (35%)
    • 50mm Layer of Memory Foam
    • 150mm Layer of Memory Foam
    • Hypoallergenic
    Best Seller Made in the UK
  13. Sleepwalk Trizone Gold King Size Mattress Mattress firmness

    Sleepwalk Trizone Gold King Size Mattress

    £199.99
    RRP: £299.99 | Save £100.00 (33%)
    Next Day Delivery Available
    • Trizone (3 phase support) spring unit
    • Soft white polyester fillings
    • No turn mattress
    Made in the UK
  14. Sareer Pocket Sprung King Size Mattress Mattress firmness

    Sareer Pocket Sprung King Size Mattress

    £199.99
    RRP: £289.99 | Save £90.00 (31%)
    Next Day Delivery Available
    • Pocket spring unit
    • Damask fabric cover
    • Tufted
  15. Pluto King Size Mattress Mattress firmness

    Pluto King Size Mattress

    £199.99
    RRP: £319.99 | Save £120.00 (37%)
    • 150mm of Reflex Foam
    • 70mm of Memory Foam
    • Hypoallergenic
    Made in the UK
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