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King Size Mattresses

King size mattresses offer complete comfort. Forget sleeping like sardines, you and your other half will never argue about bed hogging with this 5’ x 6’6” mattress. A king size mattress is perfect if you have a large bedroom. Why choose any other than a king size mattress if you’ve got the space to play with? You’ll sleep better at night as you’ll have the freedom to toss and turn without disturbing your partner’s sleep.

Sleep Like a King on a King Size Mattress

You’re certain to sleep well on a king size mattress, but if you’re after something even more spacious, then consider our super king size mattress range - here at Happy Beds, there’s something for everyone. Browse our selection of king size mattresses today and find the right one for you.

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  1. 46% OFF
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    Soft Feel 5000 Memory Foam Orthopaedic Mattress Topper
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    RRP From £174.99 Now From £94.99
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    Pearl Contour Spring Memory Foam Tufted Mattress
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    RRP From £249.99 Now From £144.99
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    SleepSoul Harmony Memory Foam Pocket Spring Mattress
    SleepSoul Harmony Memory Foam Pocket Spring Mattress
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    RRP From £559.99 Now From £309.99
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    Soft Feel 7500 Memory Foam Orthopaedic Mattress Topper
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    RRP From £209.99 Now From £114.99
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    Jay-Be Benchmark S5 Hybrid Pocket Spring Mattress
    Jay-Be Benchmark S5 Hybrid Pocket Spring Mattress
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    RRP From £404.99 Now From £224.99
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    Spring Memory and Reflex Foam Orthopaedic Mattress
    Spring Memory and Reflex Foam Orthopaedic Mattress
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    RRP From £264.99 Now From £144.99
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    Stress Free 1500 Pocket Sprung Memory and Reflex Foam Mattress
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    RRP From £334.99 Now From £194.99
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    Soft Feel 2500 Memory Foam Orthopaedic Mattress Topper
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    RRP From £129.99 Now From £69.99
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    SleepSoul Paradise Pocket Sprung Mattress
    SleepSoul Paradise Pocket Sprung Mattress
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    RRP From £354.99 Now From £194.99
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    Jay-Be Benchmark S1 Comfort Foam Free Spring Mattress
    Jay-Be Benchmark S1 Comfort Foam Free Spring Mattress
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    RRP From £324.99 Now From £179.99
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    Jay-Be Benchmark S7 Tri-Brid Pocket Spring Mattress
    Jay-Be Benchmark S7 Tri-Brid Pocket Spring Mattress
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    RRP From £504.99 Now From £279.99
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    SleepSoul Cloud 800 Pocket Spring Mattress
    SleepSoul Cloud 800 Pocket Spring Mattress
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    RRP From £404.99 Now From £224.99
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    SleepSoul Balance 800 Pocket Spring and Memory Foam Mattress
    SleepSoul Balance 800 Pocket Spring and Memory Foam Mattress
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    RRP From £334.99 Now From £184.99
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    Jay-Be Benchmark S3 Memory Fibre Spring Mattress
    Jay-Be Benchmark S3 Memory Fibre Spring Mattress
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    RRP From £389.99 Now From £214.99
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    SleepSoul Heaven Pocket Sprung Mattress
    SleepSoul Heaven Pocket Sprung Mattress
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    RRP From £359.99 Now From £199.99
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    SleepSoul Serenity Memory Foam Pocket Spring Pillowtop Mattress
    SleepSoul Serenity Memory Foam Pocket Spring Pillowtop Mattress
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    RRP From £444.99 Now From £244.99

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A king mattress offers the ultimate in luxury and space, measuring 150cm x 200cm, or 5.0ft x 6.6ft. Whether you're a couple who wants extra space at night or just a solo sleeper wanting to sleep like royalty, our king size mattresses are guaranteed to do the job.

We offer a range of mattress fillings to suit any sleeping position or support needs, including:

The mattress structure you choose can affect how your comfort throughout the night, which is why you should do careful research before purchasing anything. Our king size mattresses included the following structures:

Forget sleeping like sardines! You and your other half will never argue about bed hogging with these spacious wonders. With more than enough space to toss and turn without imposing on your partner, it’s easy to see why it is a fan favourite. Perfect if you have a large bedroom or if you’re tall and need those extra few inches to avoid your feet hanging off the end, a king size mattress really adds that special touch.

Are you not sure on whether a king size mattress will suit you best, whether you need some of the special features, or whether you'll have the space to accommodate one? Take a look at our Mattress Buying Guide and our Measuring Guide. to find out more