Clear
Close

Trending searches

Speak to a bed expert:
01928 242829
Price drop sale banner Man eye mask Woman yawning
Ends in… 0ddays 00hhours 00mmins 00ssecs

Medium Firm King Size Mattresses

Showing 25 to 36 of 75 Products
Filter

Filter By

Filter By

View Products (75)
Silentnight Idina King Size Mattress

SILENTNIGHT Idina King Size Mattress

Review Stars
5/5
(1 Reviews)
£689Save £360RRP £1,049Was £939
From £22.06 per month
  • Memory Foam Filling
  • 1000 Pocket Spring
  • 5 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 2 to 3 Weeks
Silentnight Lunix Pillowtop King Size Mattress

SILENTNIGHT Lunix Pillowtop King Size Mattress

Review Stars
5/5
(1 Reviews)
£859Save £230RRP £1,089Was £969
From £27.51 per month
  • Gel Foam Filling
  • Pocket Spring
  • 5 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 2 to 3 Weeks
Mattress-Trial-60-Nights-sized
Dormeo Octasmart Premium Hybrid King Size Mattress

DORMEO Octasmart Premium Hybrid King Size Mattress

Review Stars
4.8/5
(15 Reviews)
£569Save £500RRP £1,069Was £749
From £22.38 per month
  • Pocket Spring
  • 18 Year Warranty
Medium Firm
FREE Delivery in 7 to 14 Days
Mattress-Trial-200-Nights-sized
Simba Natural Hybrid Source King Size Mattress

SIMBA Natural Hybrid Source King Size Mattress

£969Save £330RRP £1,299
From £31.03 per month
  • Natural Fibre Filling
  • 2900 Pocket Spring
  • 10 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 14 Days
Mattress-Trial-200-Nights-sized
Simba Natural Hybrid Escape King Size Mattress

SIMBA Natural Hybrid Escape King Size Mattress

£1,349Save £450RRP £1,799
From £43.20 per month
  • Natural Fibre Filling
  • 4800 Pocket Spring
  • 10 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery within 3 Weeks
Mattress-Trial-200-Nights-sized
Simba Natural Hybrid Apex King Size Mattress

SIMBA Natural Hybrid Apex King Size Mattress

£1,499Save £600RRP £2,099
From £48.00 per month
  • Natural Fibre Filling
  • 6700 Pocket Spring
  • 10 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery within 3 Weeks
Most-Comfortable-sized
Sleepeezee Ortho Elite King Size Mattress

SLEEPEEZEE Ortho Elite King Size Mattress

Review Stars
4.9/5
(39 Reviews)
£589Save £180RRP £769Was £699
From £20.78 per month
  • Memory Foam Filling
  • 1200 Pocket Spring
  • 10 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 2 to 3 Weeks
Awards-Expert-Choice
Mattress-Trial-60-Nights-sized
Sleepeezee Jessica King Size Mattress

SLEEPEEZEE Jessica King Size Mattress

Review Stars
4.8/5
(16 Reviews)
£849Save £480RRP £1,329Was £1,169
From £33.59 per month
  • Memory Foam Filling
  • 1800 Pocket Spring
  • 10 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 2 to 3 Weeks
new-sized
Sleepeezee Memory 4000 King Size Mattress

SLEEPEEZEE Memory 4000 King Size Mattress

£899Save £330RRP £1,229Was £999
From £28.79 per month
  • Memory Foam Filling
  • 4000 Pocket Spring
  • 10 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 2 to 3 Weeks
Highgrove Beds Aldford King Size Mattress

HIGHGROVE BEDS Aldford King Size Mattress

Review Stars
5/5
(12 Reviews)
£529Save £60RRP £569Was £589
From £16.94 per month
  • 1000 Pocket Spring
  • 5 Year Warranty
Medium Firm
Removal and Recycle Available
FREE Delivery in 14 Days
Mattress-Trial-60-Nights-sized
Airsprung Memory Dream King Size Mattress

AIRSPRUNG Memory Dream King Size Mattress

Review Stars
5/5
(2 Reviews)
£329Save £150RRP £479Was £369
From £10.54 per month
  • Memory Foam Filling
  • 1 Year Guarantee
Medium Firm
FREE Delivery in 3 to 5 Days
Mattress-Trial-365-Nights-sized
Nectar Essentials Hybrid King Size Mattress

NECTAR Essentials Hybrid King Size Mattress

Review Stars
5/5
(1 Reviews)
£489Save £310RRP £799
From £15.98 per month
  • Memory Foam Filling
  • 600 Pocket Spring
  • 10 Year Guarantee
Medium Firm
FREE Delivery in 3 to 5 Days
Show more
Showing 25 to 36 of 75 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