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King Size Mattresses

Showing 1 to 12 of 456 Products
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Duvets
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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
Spring Sale Last Chance
Mattress-Trial-60-Nights-sized
Dormeo Octasmart Premium Plus King Size Mattress

DORMEO Octasmart Premium Plus King Size Mattress

Review Stars
4.8/5
(63 Reviews)
£419Save £360RRP £779Was £549
From £139.67 per month
From £13.04 per month
  • Memory Foam Filling
  • Foam
  • 18 Year Warranty
Medium
FREE Delivery in 3 to 5 Days
Mattress-Trial-60-Nights-sized
Dormeo Octasmart Premium Classic King Size Mattress

DORMEO Octasmart Premium Classic King Size Mattress

Review Stars
4.9/5
(27 Reviews)
£419Save £360RRP £779Was £559
From £139.67 per month
From £13.04 per month
  • Foam
  • 18 Year Warranty
Medium Firm
FREE Delivery in 7 to 14 Days
Sealy-GH-Logo
Sealy Exquisite Palatial King Size Mattress

SEALY Exquisite Palatial King Size Mattress

Review Stars
5/5
(1 Reviews)
£3,019Save £1,910RRP £4,929Was £3,749
From £84.38 per month
  • Foam
  • 10 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery within 4 Weeks
Mattress-Trial-200-Nights-sized
Emma Hybrid Original King Size Mattress

EMMA Hybrid Original King Size Mattress

Review Stars
5/5
(1 Reviews)
£389Save £400RRP £789Was £599
From £129.67 per month
From £12.28 per month
  • Memory Foam Filling
  • Foam
  • 10 Year Guarantee
Medium
FREE Delivery in 14 Days
Mattress-Trial-100-Nights-sized
Sealy Memory Deluxe Ortho King Size Mattress

SEALY Memory Deluxe Ortho King Size Mattress

Review Stars
5/5
(1 Reviews)
£773Save £306RRP £1,079Was £959
From £257.67 per month
From £21.58 per month
  • Memory Foam Filling
  • Foam
  • 5 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery within 4 Weeks
Mattress-Trial-100-Nights-sized
Sealy Holbrook King Size Mattress

SEALY Holbrook King Size Mattress

Review Stars
5/5
(1 Reviews)
£899Save £450RRP £1,349Was £1,099
From £299.67 per month
From £25.09 per month
  • Latex Filling
  • 800 Foam
  • 5 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery within 4 Weeks
Mattress-Trial-100-Nights-sized
Sealy Belgravia King Size Mattress

SEALY Belgravia King Size Mattress

Review Stars
5/5
(1 Reviews)
£1,043Save £536RRP £1,579Was £1,289
From £347.67 per month
From £29.11 per month
  • Memory Foam Filling
  • 1800 Foam
  • 5 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery within 4 Weeks
Which-Best-Buy-Blank
Dormeo Memory Plus King Size Mattress

DORMEO Memory Plus King Size Mattress

Review Stars
4.8/5
(300 Reviews)
£299Save £480RRP £779Was £499
From £99.67 per month
From £9.02 per month
  • Memory Foam Filling
  • Foam
  • 15 Year Warranty
Medium
FREE Delivery in 7 to 14 Days
Breasley Uno Vitality Plus King Size Mattress

BREASLEY Uno Vitality Plus King Size Mattress

Review Stars
4.7/5
(10 Reviews)
£379Save £140RRP £519Was £419
From £126.34 per month
From £9.52 per month
  • Memory Foam Filling
  • Foam
  • 5 Year Guarantee
Medium
FREE Delivery in 5 to 7 Days
Mattress-Trial-60-Nights-sized
Dormeo Octasmart Premium Deluxe King Size Mattress

DORMEO Octasmart Premium Deluxe King Size Mattress

Review Stars
4.8/5
(5 Reviews)
£499Save £430RRP £929Was £659
From £166.34 per month
From £15.55 per month
  • Memory Foam Filling
  • Foam
  • 18 Year Warranty
Soft Medium
FREE Delivery in 7 to 14 Days
Breasley Uno Essential Ortho King Size Mattress

BREASLEY Uno Essential Ortho King Size Mattress

Review Stars
5/5
(4 Reviews)
£289Save £110RRP £399Was £329
From £96.34 per month
From £7.26 per month
  • Foam
  • 5 Year Guarantee
Firm
FREE Delivery in 5 to 7 Days
Viva True Air Ortho King Size Mattress

VIVA True Air Ortho King Size Mattress

Review Stars
5/5
(1 Reviews)
£829Save £270RRP £1,099Was £929
From £276.34 per month
From £20.82 per month
  • Foam
  • 10 Year Warranty
Firm
FREE Delivery in 14 Days
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Showing 1 to 12 of 456 Products

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