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King Size Mattresses

Showing 1 to 12 of 456 Products
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Bed Sheets
+ Show more categories

Sizes

Small Single
2ft 6in x 6ft 3in / 75 x 190cm
Small Single Long
2ft 6in x 6ft 6in / 75 x 200cm
Single
3ft x 6ft 3in / 90 x 190cm
Long Single
3ft x 6ft 6in / 90 x 200cm
Small Double
4ft x 6ft 3in / 120 x 190cm
Small Double Long
4ft x 6ft 6in / 120 x 200cm
Double
4ft 6in x 6ft 3in / 135 x 190cm
Long Double
4ft 6in x 6ft 6in / 135 x 200cm
European Double
4ft 8in x 6ft 6in / 140 x 200cm
King Size
5ft x 6ft 6in / 150 x 200cm
King Size Zip & Link
2 x 2ft 6in x 6ft 6in / 2 x 75 x 200cm
European King Size
5ft 3in x 6ft 6in / 160 x 200cm
Super King Size
6ft x 6ft 6in / 180 x 200cm
Super King Size Zip & Link
2 x 3ft x 6ft 6in / 2 x 90 x 200cm
Small Emperor
6ft 6in x 6ft 6in / 200 x 200cm
Small Emperor Zip & Link
2 x 3ft 3in x 6ft 6in / 2 x 100 x 200cm
Emperor
7ft x 7ft / 215 x 215cm
Emperor Zip & Link
2 x 3ft 6in x 7ft / 2 x 107.5 x 215cm
+ Show more sizes

Firmness

Soft
Good for side sleepers. The softest level of support.
Soft Medium
Good for side sleepers who require a little more support.
Medium
Good all rounder for front, side or back sleepers.
Medium Firm
Good for people who change sleeping position.
Firm
Good for people who sleep on their front or back.
Extra Firm
The firmest level of support. Also known as orthopaedic.

Support System

Foam
Pocket Spring

Comfort Filling

Natural Fibre
Latex
Memory Foam
Gel Foam

Features

Roll Up / Vacuum Packed
Pillow Top
Award Winning
Cooling
Eco Friendly
Anti Allergy and Hypoallergenic
Orthopaedic

Depth

Up to 19cm
20cm - 29cm
30cm and above

Mattress Type

Hybrid

Brands

Airsprung
Breasley
Dormeo
Dunlopillo
Duvalay
Emma
Gainsborough
Harrison Spinks
Healthbeds
Healthopaedic
Highgrove Beds
Hypnos
Komfi
Land Of Beds
Lewis & Jones
Millbrook
Nectar
Relyon
Rest Assured
Sealy
Silentnight
Simba
Sleepeezee
SleepSoul
Sweet Dreams
Tempur
Vispring
Viva
+ Show more brands

Delivery Times

Next Day Delivery
Delivery Within 7 Days
Delivery Within 14 Days
Delivery Within 21 Days
Delivery Within 28 Days

Price Range

£0 - £249
£250 - £499
£500 - £749
£750 - £999
£1000 - £1499
£1500 - £1999
£2000 and above

Special Offers

Clearance
Special Buy
Deeper Sleeper Sale
Awards-Best-Seller
Mattress-Trial-60-Nights-sized
Hypnos Premier Deluxe King Size Mattress

HYPNOS Premier Deluxe King Size Mattress

Review Stars
4.9/5
(62 Reviews)
£969Save £290RRP £1,259Was £1,089
From £323.00 per month
From £24.34 per month
  • Natural Fibre Filling
  • ReActive 8 Pocket Spring
  • 10 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery within 3 Weeks
Awards-Best-Seller
Good-Housekeeping-Getting-Greener
Silentnight Amelia King Size Mattress

SILENTNIGHT Amelia King Size Mattress

Review Stars
4.8/5
(73 Reviews)
£599Save £210RRP £809Was £669
From £199.67 per month
From £15.05 per month
  • 1216 Pocket Spring
  • 5 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 14 Days
Good-Housekeeping-24
Simba Hybrid Pro King Size Mattress

SIMBA Hybrid Pro King Size Mattress

Review Stars
5/5
(8 Reviews)
£999Save £800RRP £1,799Was £1,389
From £333.0 per month
From £31.37 per month
  • Memory Foam Filling
  • 4800 Pocket Spring
  • 10 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 2 Days
Awards-Expert-Choice
Relyon Stratus Dunlopillo Latex King Size Mattress

RELYON Stratus Dunlopillo Latex King Size Mattress

Review Stars
4.8/5
(9 Reviews)
£859Save £560RRP £1,419Was £1,049
From £286.34 per month
From £23.84 per month
  • Latex Filling
  • 1050 Pocket Spring
  • 10 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery in 3 Days
Awards-Expert-Choice
Mattress-Trial-60-Nights-sized
Hypnos Ortho Gold King Size Mattress

HYPNOS Ortho Gold King Size Mattress

Review Stars
5/5
(20 Reviews)
£999Save £650RRP £1,649Was £1,359
From £333.00 per month
From £25.09 per month
  • Natural Fibre Filling
  • ReActive 8 Pocket Spring
  • 10 Year Guarantee
Firm
Removal and Recycle Available
Next Day Delivery
Awards-Best-Seller
GHI-APPROVED-2025-Sized
Emma Hybrid AirGrid - Elite King Size Mattress

EMMA Hybrid AirGrid - Elite King Size Mattress

Review Stars
4.6/5
(5 Reviews)
£999Save £650RRP £1,649Was £1,299
From £333.00 per month
From £25.09 per month
  • Memory Foam Filling
  • Pocket Spring
  • 10 Year Guarantee
Medium
FREE Delivery within 4 Weeks
NBF Awards_Bed Manufacturer_Winner_F_D
Harrison Spinks Classic Comfort King Size Mattress

HARRISON SPINKS Classic Comfort King Size Mattress

Review Stars
5/5
(2 Reviews)
£699Save £240RRP £939Was £779
From £233.00 per month
From £17.56 per month
  • Natural Fibre Filling
  • Pocket Spring
  • 10 Year Warranty
Medium
Removal and Recycle Available
Next Day Delivery
Awards-Best-Seller
Relyon Athena King Size Mattress

RELYON Athena King Size Mattress

Review Stars
5/5
(2 Reviews)
£969Save £620RRP £1,589Was £1,339
From £323.0 per month
From £29.87 per month
  • Natural Fibre Filling
  • 1400 Pocket Spring
  • 15 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery in 3 Days
Mattress-Trial-100-Nights-sized
Sealy Davenport King Size Mattress

SEALY Davenport King Size Mattress

Review Stars
5/5
(1 Reviews)
£1,099Save £400RRP £1,499Was £1,229
From £366.34 per month
From £27.61 per month
  • Memory Foam Filling
  • 1400 Pocket Spring
  • 5 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery within 4 Weeks
Mattress-Trial-60-Nights-sized
Sleepeezee ActivFlex Ultra King Size Mattress

SLEEPEEZEE ActivFlex Ultra King Size Mattress

Review Stars
5/5
(1 Reviews)
£1,099Save £420RRP £1,519Was £1,229
From £366.34 per month
From £27.61 per month
  • Gel Foam Filling
  • 3700 Pocket Spring
  • 10 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery in 2 to 3 Weeks
Awards-Eco-Choice
Hypnos Dynasty King Size Mattress

HYPNOS Dynasty King Size Mattress

Review Stars
5/5
(1 Reviews)
£1,199Save £470RRP £1,669Was £1,449
From £399.67 per month
From £32.63 per month
  • Natural Fibre Filling
  • ReActivePro 7 Pocket Spring
  • 10 Year Guarantee
Medium
Firm
Removal and Recycle Available
FREE Delivery within 7 Weeks
Good-Housekeeping-24
Simba Hybrid King Size Mattress

SIMBA Hybrid King Size Mattress

Review Stars
4.6/5
(8 Reviews)
£749Save £500RRP £1,249Was £989
From £249.67 per month
From £22.58 per month
  • Memory Foam Filling
  • 1900 Pocket Spring
  • 10 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 2 Days
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Showing 1 to 12 of 456 Products

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