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King Size Mattresses

Looking for the perfect king size mattress? Look no further! Our extensive range of king size mattresses offers unparalleled comfort and support to ensure a restful night's sleep. Popular among those who prefer extra room in bed, king size mattresses measure 5 feet in width and 6 feet 6 inches in length (150 x 200 mattress). Being one foot narrower than a super king-size mattress and six inches wider than a double mattress, they are an ideal size for individuals who desire plenty of sleeping space or share a bed with a partner. Additionally, it accommodates children who join their parents in bed or pets that prefer to snuggle at the foot of the bed. With a king-size mattress, there's space for everyone! Whether you prefer memory foam, pocket sprung, or hybrid options, we have the perfect mattress to suit your needs. With our affordable prices and exceptional customer service, we make finding the perfect mattress easy and stress-free. Explore our collection today and upgrade your sleep experience with our king size mattresses!

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Showing 1 to 12 of 384 Products
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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)
£999Save £260RRP £1,259Was £1,099
From £333.00 per month
From £25.09 per month
  • Natural Fibre Filling
  • ReActive 8 Pocket Spring
  • 10 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery in 5 to 6 Weeks
Awards-Expert-Choice
Relyon Stratus Dunlopillo Latex King Size Mattress

RELYON Stratus Dunlopillo Latex King Size Mattress

Review Stars
4.7/5
(10 Reviews)
£989Save £470RRP £1,459Was £1,099
From £329.67 per month
From £24.84 per month
  • Latex Filling
  • 1050 Pocket Spring
  • 10 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery in 3 Days
Good-Housekeeping-24
Simba Hybrid Pro King Size Mattress

SIMBA Hybrid Pro King Size Mattress

Review Stars
4.7/5
(11 Reviews)
£989Save £310RRP £1,299
From £329.67 per month
From £24.84 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
Mattress-Trial-60-Nights-sized
Hypnos Ortho Gold King Size Mattress

HYPNOS Ortho Gold King Size Mattress

Review Stars
4.9/5
(21 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
FREE Delivery in 5 to 6 Weeks
Relyon Appleton King Size Mattress

RELYON Appleton King Size Mattress

Review Stars
5/5
(2 Reviews)
£899Save £580RRP £1,479Was £1,099
From £299.67 per month
From £25.09 per month
  • Natural Fibre Filling
  • 1500 Pocket Spring
  • 10 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery in 3 Days
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)
£649Save £340RRP £989Was £699
From £216.34 per month
From £16.30 per month
  • Natural Fibre Filling
  • Pocket Spring
  • 10 Year Warranty
Medium
Removal and Recycle Available
Next Day Delivery
Mattress-Trial-60-Nights-sized
Sleepeezee Dual Seasons Deluxe King Size Mattress

SLEEPEEZEE Dual Seasons Deluxe King Size Mattress

Review Stars
5/5
(35 Reviews)
£849Save £230RRP £1,079Was £949
From £283.00 per month
From £21.33 per month
  • Natural Fibre Filling
  • 1015 Pocket Spring
  • 10 Year Guarantee
Medium
Removal and Recycle Available
Next Day Delivery
Relyon Stockton King Size Mattress

RELYON Stockton King Size Mattress

Review Stars
5/5
(2 Reviews)
£999Save £630RRP £1,629Was £1,199
From £333.0 per month
From £27.36 per month
  • Natural Fibre Filling
  • 1500 Pocket Spring
  • 10 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery in 3 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
(28 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
Awards-Highly-Rated
Mattress-Trial-60-Nights-sized
Hypnos Luxor Comfort Supreme King Size Mattress

HYPNOS Luxor Comfort Supreme King Size Mattress

Review Stars
4.9/5
(79 Reviews)
£1,379Save £310RRP £1,689Was £1,539
From £459.67 per month
From £34.64 per month
  • Natural Fibre Filling
  • ReActive 7 Pocket Spring
  • 10 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery in 5 to 6 Weeks
Mattress-Trial-100-Nights-sized
Sealy Davenport King Size Mattress

SEALY Davenport King Size Mattress

Review Stars
5/5
(1 Reviews)
£1,034Save £525RRP £1,559Was £1,279
From £344.67 per month
From £28.86 per month
  • Memory Foam Filling
  • 1400 Pocket Spring
  • 5 Year Guarantee
Medium
Removal and Recycle Available
FREE Delivery in 3 to 4 Weeks
Sleepeezee Hotel Classic 1000 King Size Mattress

SLEEPEEZEE Hotel Classic 1000 King Size Mattress

Review Stars
4.9/5
(78 Reviews)
£589Save £180RRP £769Was £699
From £196.34 per month
From £14.80 per month
  • Natural Fibre Filling
  • 1000 Pocket Spring
  • 5 Year Guarantee
Medium Firm
Removal and Recycle Available
FREE Delivery in 14 Days
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Showing 1 to 12 of 384 Products

Explore Our King Size Mattresses for Premium Comfort and Space

We sell a wide range of king mattresses including:

  • Natural Fibre King Size Mattresses. These supply a sumptuous sleeping surface, which regulates your body temperature as you sleep. Offering a hypoallergenic sleep surface, this filling type is ideal for people with allergies.
  • Latex King Size Mattresses are an ideal choice for sleepers with allergies and respiratory difficulties. Latex is extremely responsive, supplying excellent pressure relief as you sleep.
  • Foam King Size Mattresses are a smart choice for restless sleepers. The foam contours to your body as you sleep, supplying great comfort.
  • Memory Foam King Size Mattresses absorb motion making them a wise choice for co sleepers. Weight is evenly distributed as you sleep delivering excellent pressure relieving properties and spinal support.
  • Gel King Size Mattresses are fantastic at regulating temperature. They are an excellent choice for sleepers experiencing aches and pains as gel offers elevated levels of comfort and support.

See our mattress filling guide for further information.

We also have king size mattresses with a range of different spring options available:

  • Pocket Spring King Size Mattresses offer elevated levels of personalised support. They are beneficial to co-sleepers who are different weights. As the individual pocket springs work independently of each other, only responding to the pressure applied in that area, this type of spring choice can be hugely beneficial to co-sleepers where one is a restless sleeper.
  • Traditional Spring King Size Mattresses - often called open coil/Bonnell spring offer immense value for money. Interconnected springs work together to evenly distribute weight across the mattress, ensuring no single body part takes the brunt of the pressure as you sleep.

Additional information

Our team of award-winning bed experts are on hand to help your find the king size mattress of your dreams and to help you achieve a good night's sleep, night after night. Speak to one of our bed experts today on: 01928 242829 or email us. Alternatively, use the chat feature on our website or pop into one our stores where a warm welcome awaits.

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