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King Size Mattresses

King Size Mattresses

At Dormeo, we have a fantastic range of king-size mattresses that provide a roomier option than a double or single mattress. Measuring 150cm x 200cm, they're ideal for couples or if you're above average height, and they are the perfect middle ground if you can't quite fit a super king-size into your room.

Set Descending Direction

27 Items

per page
  1. Dormeo Fresh Memory Foam Mattress, King
    Comfort: Medium/Firm
    Depth: 14cm
    Dormeo Fresh Memory Foam Mattress, King
    £259.99 Was £519.99 Save £260.00
  2. Dormeo Fresh Plus Memory Foam Mattress, King
    Comfort: Medium
    Depth: 17cm
    Dormeo Fresh Plus Memory Foam Mattress, King
    £309.99 Was £779.99 Save £470.00
  3. Dormeo Fresh Deluxe Memory Foam Mattress, King
    Comfort: Medium/Soft
    Depth: 20cm
    Dormeo Fresh Deluxe Memory Foam Mattress, King
    £359.99 Was £889.99 Save £530.00
  4. Dormeo Memory Classic Memory Foam Mattress, King
    Comfort: Medium/Firm
    Depth: 14cm
    Dormeo Memory Classic Memory Foam Mattress, King
    £519.99
  5. Dormeo Memory Plus Memory Foam Mattress, King
    Comfort: Medium
    Depth: 17cm
    Dormeo Memory Plus Memory Foam Mattress, King
    £309.99 Was £779.99 Save £470.00
  6. Dormeo Memory Deluxe Memory Foam Mattress, King
    Comfort: Medium/Soft
    Depth: 20cm
    Dormeo Memory Deluxe Memory Foam Mattress, King
    £359.99 Was £899.99 Save £540.00
  7. Octasmart Plus Memory Foam Mattress, King
    Comfort: Medium
    Depth: 18cm
    Octasmart Plus Memory Foam Mattress, King
    £499.99 Was £999.99 Save £500.00
  8. Dormeo S Plus Memory Foam Mattress, King
    Comfort: Multi
    Depth: 20cm
    Dormeo S Plus Memory Foam Mattress, King
    £999.99
  9. Dormeo Octasense Memory Foam Mattress, King
    Comfort: Medium/Firm
    Depth: 18cm
    Dormeo Octasense Memory Foam Mattress, King
    £599.99
  10. Dormeo Silver Memory Foam Mattress, King
    Comfort: Medium/Firm
    Depth: 14cm
    Dormeo Silver Memory Foam Mattress, King
    £619.99
  11. Dormeo Silver Plus Memory Foam Mattress, King
    Comfort: Medium
    Depth: 17cm
    Dormeo Silver Plus Memory Foam Mattress, King
    £719.99
  12. Dormeo Silver Deluxe Memory Foam Mattress, King
    Comfort: Medium/Soft
    Depth: 20cm
    Dormeo Silver Deluxe Memory Foam Mattress, King
    £819.99
  13. Octaspring HYBRID Mattress, King
    Comfort: Medium/Firm
    Depth: 27cm
    Octaspring HYBRID Mattress, King
    £1,229.00
  14. Octaspring HYBRID Plus Mattress, King
    Comfort: Medium
    Depth: 27cm
    Octaspring HYBRID Plus Mattress, King
    £1,549.00
  15. Octaspring TRIBRID Latex Hybrid Mattress, King
    Comfort: Medium/Firm
    Depth: 27cm
    Octaspring TRIBRID Latex Hybrid Mattress, King
    £1,749.00
  16. Octaspring 5500 Memory Foam Mattress, King
    Comfort: Firm
    Depth: 20cm
    Octaspring 5500 Memory Foam Mattress, King
    £1,499.00
  17. Octaspring 6500 Memory Foam Mattress, King
    Comfort: Medium/Firm
    Depth: 22cm
    Octaspring 6500 Memory Foam Mattress, King
    £1,749.00
  18. Octaspring 7500 Latex Memory Foam Mattress, King
    Comfort: Medium
    Depth: 22cm
    Octaspring 7500 Latex Memory Foam Mattress, King
    £1,899.00
  19. Octaspring 8000 Memory Foam Mattress, King
    Comfort: Medium
    Depth: 25cm
    Octaspring 8000 Memory Foam Mattress, King
    £2,099.00
  20. Octaspring 8500 Memory Foam Mattress, King
    Comfort: Medium/Soft
    Depth: 30cm
    Octaspring 8500 Memory Foam Mattress, King
    £2,399.00
  21. Octaspring 9500 Latex Memory Foam Mattress, King
    Comfort: Medium
    Depth: 30cm
    Octaspring 9500 Latex Memory Foam Mattress, King
    £2,549.00
  22. Dormeo Options Hybrid Mattress, King
    Comfort: Medium/Firm
    Depth: 23cm
    Dormeo Options Hybrid Mattress, King
    £599.99
  23. Dormeo Options Hybrid Plus Mattress, King
    Comfort: Medium/Firm
    Depth: 23cm
    Dormeo Options Hybrid Plus Mattress, King
    £699.99
  24. Dormeo Indulgence Memory Foam Mattress, King
    Comfort: Medium/Soft
    Depth: 20cm
    Dormeo Indulgence Memory Foam Mattress, King
    £799.99
  25. Octaspring Levanto Memory Foam Mattress, King
    Comfort: Firm
    Depth: 19cm
    Octaspring Levanto Memory Foam Mattress, King
    £1,499.00
  26. Octaspring Mistral Memory Foam Mattress, King
    Comfort: Medium/Firm
    Depth: 22cm
    Octaspring Mistral Memory Foam Mattress, King
    £1,649.00
  27. Octaspring Sirocco Memory Foam Mattress, King
    Comfort: Medium/Soft
    Depth: 27cm
    Octaspring Sirocco Memory Foam Mattress, King
    £2,399.00
Set Descending Direction

27 Items

per page

As well as being incredibly spacious, our king mattresses are exceptionally comfortable and supportive, allowing you to enjoy a luxurious night's rest. Add some of our premium king size bedding to your new mattress to further enhance your sleeping experience.

And, we carry this size in all of our best collections, including our Memory, Fresh, and Octaspring mattresses, so you'll be able to find the exact style that matches your sleeping needs.

Should you have any questions about our king-size bed mattresses, you can get in touch with our team or call them on 0800 625 0134. They'll be happy to answer your query or provide more information.

We offer free UK tracked delivery on all of our mattresses, so be sure to order yours today from our online store.

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Dormeo UK Limited trading as Dormeo, is registered in England and Wales no. 07440398. Registered address: Wye House, 376 London Road, High Wycombe, Buckinghamshire, HP11 1LH. Dormeo UK Limited is Authorised and Regulated by the Financial Conduct Authority as a Consumer Credit Firm under firm number 627302. Consumer credit service is provided by Close Brothers Limited - a subsidiary of Close Brothers Group plc. Close Brothers Limited is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and Prudential Regulation Authority. Firm reference number 124750.