Clear
Close

Trending searches

Speak to a bed expert:
01928 242829
Deeper sleeper sale banner Couple laying on bed
Ends in… 0ddays 00hhours 00mmins 00ssecs

Extra Firm Super King Size Mattresses

Showing 1 to 12 of 35 Products
Filter

Filter By

Filter By

View Products (35)
GHI-2025-Sized
Hypnos Elara Deluxe Super King Size Mattress

Hypnos Elara Deluxe Super King Size Mattress

Hypnos
Review Stars
5/5
(1 Reviews)
£2,589
Save £1,160
RRP £3,749
From
£82.90
per month
Medium
Firm
Extra Firm
  • Natural Fibre Filling
  • ReActivePro 8 Pocket Spring
  • 10 Year Guarantee
FREE Delivery in 4 to 5 Weeks
Mattress-Trial-100-Nights-sized
Lewis & Jones Cartmel Ortho Super King Size Mattress

Lewis & Jones Cartmel Ortho Super King Size Mattress

Lewis & Jones
£999
Save £500
RRP £1,499
From
£31.99
per month
Extra Firm
  • Natural Fibre Filling
  • 2009 Pocket Spring
  • 10 Year Guarantee
  • Free Pillow Pair - RRP £99
FREE Delivery in 7 to 10 Days
Hypnos Kensington Ortho Super King Size Mattress

Hypnos Kensington Ortho Super King Size Mattress

Hypnos
Review Stars
4.9/5
(33 Reviews)
£969
Save £290
RRP £1,259
From
£31.03
per month
Extra Firm
  • Natural Fibre Filling
  • ReActive 6 Pocket Spring
  • 5 Year Guarantee
FREE Delivery in 4 to 5 Weeks
Awards-Best-Seller
Vispring Elite Super King Size Mattress

Vispring Elite Super King Size Mattress

Vispring
Review Stars
4.9/5
(27 Reviews)
£2,299
Save £601
RRP £2,900
From
£73.62
per month
Soft
Medium
Firm
Extra Firm
  • Natural Fibre Filling
  • 1254 Pocket Spring
  • 30 Year Guarantee
  • Free Vispring Mattress Protector - RRP From £269
FREE Delivery in 2 to 3 Weeks
Awards-Best-Seller
Mattress-Trial-100-Nights-sized
Sealy Caldwell Super King Size Mattress

Sealy Caldwell Super King Size Mattress

Sealy
Review Stars
4.9/5
(19 Reviews)
£659
Save £310
RRP £969
From
£21.10
per month
Extra Firm
  • 5 Year Guarantee
FREE Delivery in 14 Days
Hypnos Ortho Silver Super King Size Mattress

Hypnos Ortho Silver Super King Size Mattress

Hypnos
Review Stars
5/5
(4 Reviews)
£1,389
Save £440
RRP £1,829
From
£44.48
per month
Firm
Extra Firm
  • Natural Fibre Filling
  • ReActive 7 Pocket Spring
  • 10 Year Guarantee
FREE Delivery in 4 to 5 Weeks
Hypnos Ortho Bronze Super King Size Mattress

Hypnos Ortho Bronze Super King Size Mattress

Hypnos
Review Stars
5/5
(7 Reviews)
£1,199
Save £400
RRP £1,599
From
£38.39
per month
Firm
Extra Firm
  • Natural Fibre Filling
  • ReActive 6 Pocket Spring
  • 10 Year Guarantee
FREE Delivery in 4 to 5 Weeks
Hypnos Ortho Platinum Super King Size Mattress

Hypnos Ortho Platinum Super King Size Mattress

Hypnos
Review Stars
5/5
(2 Reviews)
£1,859
Save £810
RRP £2,669
From
£59.53
per month
Extra Firm
  • Natural Fibre Filling
  • ReActivePro 6 Pocket Spring
  • 10 Year Guarantee
FREE Delivery in 4 to 5 Weeks
GHI-2025-Sized
Hypnos Legacy III Super King Size Mattress

Hypnos Legacy III Super King Size Mattress

Hypnos
Review Stars
5/5
(2 Reviews)
£2,599
Save £1,150
RRP £3,749
From
£83.23
per month
Medium
Firm
Extra Firm
  • Natural Fibre Filling
  • ReActivePro 8 Pocket Spring
  • 10 Year Guarantee
FREE Delivery in 4 to 5 Weeks
Sealy Celebration Super King Size Mattress

Sealy Celebration Super King Size Mattress

Sealy
Review Stars
5/5
(1 Reviews)
£2,339
Save £1,260
RRP £3,599
From
£74.90
per month
Extra Firm
  • Posturepedic
  • 7 Year Guarantee
FREE Delivery in 14 Days
Vispring Baronet Superb Super King Size Mattress

Vispring Baronet Superb Super King Size Mattress

Vispring
Review Stars
5/5
(4 Reviews)
£3,399
Save £851
RRP £4,250
From
£108.84
per month
Soft
Medium
Firm
Extra Firm
  • Natural Fibre Filling
  • 1326 Pocket Spring
  • 30 Year Guarantee
  • Free Vispring Mattress Protector - RRP From £269
FREE Delivery in 2 to 3 Weeks
Awards-Expert-Choice
Relyon Natural Pocket Ortho Intense Super King Size Mattress

Relyon Natural Pocket Ortho Intense Super King Size Mattress

Relyon
Review Stars
4.9/5
(39 Reviews)
£1,249
Save £590
RRP £1,839
From
£40.00
per month
Extra Firm
  • Natural Fibre Filling
  • 1500 Pocket Spring
  • 10 Year Guarantee
FREE Delivery in 5 to 6 Weeks
Show more
Showing 1 to 12 of 35 Products

Get in the know with our buying guides

View all
Happy woman sat on bed
How to Choose the Right Mattress
Find the right mattress for your needs with our ultimate guide
Person putting on mattress protector
Ultimate Guide to the Best Mattress Protector
Choosing the right mattress protector for your bed
Man sleeping in facemask
Choosing the Right Pillow for You
Ensure you have the right pillow to enhance your sleep
Boy sitting under a duvet
Ultimate Guide to Picking the Best Duvet
Don't feel overwhelmed, let us help you choose