King Size Mattresses

Getting a good night's sleep is vital for your health and a general sense of well-being, so it’s important to choose the right mattress. With one of our king size mattresses, you can be sure you’re getting value, quality, comfort and craftsmanship.

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Showing 249 product(s)
Sealy Pearl Geltex King Size Mattress Sealy Pearl Geltex King Size Mattress
Sealy Pearl Geltex Mattress - King Size
£349.99
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Stock expected 13 May
Sealy Pearl Memory King Size Memory Foam Mattress
Spring Sale
Sealy Pearl Memory King Size Memory Foam Mattress
Sealy Ortho Luxury King Size Mattress
Spring Sale
Sealy Ortho Luxury King Size Mattress
Sealy Aspen King Size Mattress Sealy Aspen King Size Mattress
Sealy Aspen Mattress - King Size
£229.99
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7-14 days delivery*
Sleepeezee Memory Comfort 1000 King Size Mattress
10% off - Offer ends 12th June
Sleepeezee Memory Comfort 1000 King Size Mattress

About King Size Mattresses

You'll be sure to get a great night's sleep on one of our high quality mattresses

You?ll wake up feeling refreshed every morning after a night on one of our king size mattresses. With the many advantages of restful sleep, from improved concentration to a whole range of health benefits, a new king size mattress has to be one of the most important investments you will ever make. And at such a luxurious size, there should be ample space for both you and your partner to stretch out, relax and snooze in comfort.

Our 5ft king size mattresses range from memory foam, no-turn mattresses to the superlative support of our orthopaedic mattresses and responsive pocket-sprung mattresses, with fine covers of cashmere or silk and luxurious fillings such as cotton or hand-teased lambswool or horsehair. If joint pain is a concern, you may want to choose a memory foam mattress, which moulds itself to your body shape. Or for superlative comfort levels, you could go for latex and pocket springs. Those who favour a firmer, harder surface to sleep on might prefer an open coil mattress ? it?s a more traditional choice that can benefit those with back problems.

And there are still more ways to make sure your new mattress is exactly what you need. Perhaps you?d like a damask cover, for a luxurious sensation. Or, if you sometimes suffer from restless nights or find yourself getting overheated, Coolmax covers can be a great option, with their innovative technology to keep skin humidity at bay and promote cool, serene sleep. It?s also reassuring to know that our mattresses are dust-mite resistant, and many are hypo-allergenic ? welcome news for allergy-sufferers. And with a range of support levels, from soft through to very firm, available across all the big brand names, you?re sure to find something that will suit you perfectly ? especially as our mattresses will fit most UK bed bases.