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King Size Mattresses

King size mattresses measure 150cm x 200cm (5ft x 6ft 6) and offer slightly more space to enjoy your sleep. We have a range of great kingsize mattress deals including up to 60% off pocket sprung, memory foam and latex, plus free delivery for all our comfortable mattresses.

75 Item(s)

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Hypnos Orthos Latex Mattress corner view

Hypnos Orthos Latex Pocket Sprung Firm Support Mattress

From: £912.00

Next Day Delivery

Relyon Firm Support Mattress - Corner

Relyon Firm Support Superflex Foam Mattress

Was: £299.00

You Save: £160.00 (53.5%)

Now Only: £139.00

Next Day Delivery

Relyon Pocket Sensation Mattress - pocket spring mattress

Relyon Sensation 1000 Pocket Sprung Mattress with Coolmax Cover

Was: £499.00

You Save: £270.00 (54.1%)

Now Only: £229.00

Next Day Delivery

Relyon Memory Pocket Sensation Mattress

Relyon Sensation 1000 Pocket Sprung Memory Foam Mattress with Coolmax Cover

Was: £549.00

You Save: £290.00 (52.8%)

Now Only: £259.00

Next Day Delivery

Visco Sensations Visco Plus 2000

Visco Sensations Visco Plus 2000

Was: £189.60

You Save: -£0.39 (-0.2%)

Now Only: £189.99

Next Day Delivery

Sleepsnug Ortho Classic Mattress - Corner

Sleepsnug Ortho Classic Mattress

Was: £410.00

You Save: £261.00 (63.7%)

Now Only: £149.00

Next Day Delivery

Sleepsound Opulence 1500 Mattress corner

Sleepsnug Opulence 1500 Mattress

From: £299.00

Next Day Delivery

Sleepsound Indulgence 2000 Mattress corner

Sleepsnug Indulgence 2000 Pocket Sprung Medium to Firm Mattress

From: £379.00

Next Day Delivery

Hypnos Orthos Silk Mattress corner view

Hypnos Orthos Silk Pocket Sprung Firm Support Mattress

From: £780.00

Next Day Delivery

Relyon Easy Support Mattress - Corner

Relyon Easy Support Superflex Foam Mattress

Was: £299.00

You Save: £160.00 (53.5%)

Now Only: £139.00

Next Day Delivery

Relyon Original Memory Foam Mattress with Coolmax Cover

Relyon Original Memory Foam Mattress with Coolmax Cover

Was: £449.00

You Save: £230.00 (51.2%)

Now Only: £219.00

Next Day Delivery

SALE - Breasley Visco 250 Ortho Mattress

Breasley Visco 250 Memory Foam Ortho Medium to Firm Mattress

From: £200.40

Next Day Delivery

Sleepsnug Refresh 1000 Mattress - Corner

Sleepsnug Refresh 1000 Mattress

Was: £700.00

You Save: £461.00 (65.9%)

Now Only: £239.00

Next Day Delivery

Sleepsound Backcare Mattress corner

Sleepsnug Backcare Mattress

Was: £390.00

You Save: £221.00 (56.7%)

Now Only: £169.00

Next Day Delivery

Relyon Memory Pocket Serenity 1500 Mattress

Relyon Serenity 1500 Pocket Sprung Foam Memory Mattress with Aircool Border

Was: £949.00

You Save: £470.00 (49.5%)

Now Only: £479.00

Next Day Delivery

Contoura Luxury Memory Foam Mattress - Corner

Contoura Luxury Memory Foam Mattress

From: £139.99

Next Day Delivery

Visco Sensations Premium 4000 Memory Mattress

Visco Sensations Premium 4000 Memory Mattress

Was: £351.60

You Save: £31.61 (9%)

Now Only: £319.99

Next Day Delivery

Relyon Memory Excellence memory foam Mattress

Relyon Excellence Memory Foam Mattress with Coolmax Cover

Was: £449.00

You Save: £220.00 (49%)

Now Only: £229.00

Next Day Delivery

Wedo Deluxe Pocket 1200 Mattress

Relyon Deluxe 1200 Pocket Sprung and Reflex Foam Mattress - Medium Soft

From: £330.00

Next Day Delivery

Sleepsound Refresh 2000 Mattress corner

Sleepsnug Refresh 2000 Mattress

Was: £820.00

You Save: £421.00 (51.3%)

Now Only: £399.00

Next Day Delivery

Shire eco DEEP Mattress

Shire eco DEEP Mattress

Was: £800.00

You Save: £480.00 (60%)

Now Only: £320.00

Next Day Delivery

Sleepsound Invigorate 1500 Mattress corner

Sleepsnug Invigorate 1500 Pocket Sprung with 50mm of Latex Medium Mattress

From: £399.00

Next Day Delivery

Contoura Memory Pocket 5000 Mattress

Contoura Memory Pocket 5000 Mattress

From: £249.99

Next Day Delivery

Visco Sensations GelFlex 2000 Mattress

Visco Sensations GelFlex 2000 Mattress

Was: £332.40

You Save: £32.41 (9.8%)

Now Only: £299.99

Next Day Delivery

Visco Senations CoolFlex 2500 Memory Mattress

Visco Sensations CoolFlex 2500 Memory Mattress

Was: £388.80

You Save: £38.81 (10%)

Now Only: £349.99

Next Day Delivery

Sleepsound Refresh 1500 Mattress corner

Sleepsnug Refresh 1500 Mattress

Was: £640.00

You Save: £311.00 (48.6%)

Now Only: £329.00

Next Day Delivery

Visco Comfort 1500 Mattress

Visco Sensations Comfort 1500 Mattress

Was: £165.60

You Save: £5.61 (3.4%)

Now Only: £159.99

Next Day Delivery

Shire eco SOUND Mattress

Shire eco SOUND Mattress

Was: £1,080.00

You Save: £650.00 (60.2%)

Now Only: £430.00

Next Day Delivery

Shire eco SNUG Mattress

Shire Eco SNUG Mattress

Was: £1,180.00

You Save: £710.00 (60.2%)

Now Only: £470.00

Next Day Delivery

Visco Sensations Deluxe Ortho 3000 Memory Mattress

Visco Sensations Deluxe Ortho 3000 Memory Mattress

Was: £351.60

You Save: £31.61 (9%)

Now Only: £319.99

Next Day Delivery

Shire Latex 2000 Pocket Mattress - Corner

Shire Latex 2000 Pocket Mattress

Was: £1,080.00

You Save: £650.00 (60.2%)

Now Only: £430.00

Next Day Delivery

Sleepeezee Cool Sensation 1400 Mattress

Sleepeezee Cool Sensation 1400 Mattress

From: £554.40

Next Day Delivery

Sleepsound Invigorate 1000 Mattress corner

Sleepsnug Invigorate 1000 Pocket Sprung with 50mm of Latex Medium to Firm Mattress

From: £339.00

Next Day Delivery

Sleepsound Comfort 800 Mattress corner

Sleepsnug Comfort 800 Mattress

Was: £530.00

You Save: £301.00 (56.8%)

Now Only: £229.00

Next Day Delivery

Visco Sensations Deluxe Ortho Extra 3000 Memory Mattress

Visco Sensations Deluxe Ortho Extra 3000 Memory Mattress

Was: £386.40

You Save: £36.41 (9.4%)

Now Only: £349.99

Next Day Delivery

Shire Encapsulated Latex 3000 Mattress - Corner

Shire Encapsulated Latex 3000 Mattress

From: £730.00

Next Day Delivery

Contoura Memory Pocket 1000 Mattress

Contoura Memory Pocket 1000 Mattress

From: £189.99

Next Day Delivery

Relyon Easy Support Supreme Mattress

Relyon Easy Support Supreme Superflex Foam Mattress

Was: £449.00

You Save: £240.00 (53.5%)

Now Only: £209.00

Next Day Delivery

Contoura Backcare Extra Firm Mattress

Contoura Backcare Extra Firm Mattress

From: £219.99

Next Day Delivery

Shire Encapsulated Memory 3000 Mattress - Corner

Shire Encapsulated Memory 3000 Mattress

From: £690.00

Next Day Delivery

Relyon Marlborough Mattress - Close-Up

Relyon Marlborough 2000 Pocket Sprung Hand Made Mattress

From: £970.00

Made To Order (3/4 wks)

Sleepeezee New Backcare Extreme 1000 Mattress - Corner Detail

Sleepeezee New Backcare Extreme 1000 Mattress

From: £444.00

Next Day Delivery

Relyon Memory Contentment Mattress

Relyon Contentment 1250 Pocket Sprung Memory Foam Mattress with Aircool Border

Was: £749.00

You Save: £380.00 (50.7%)

Now Only: £369.00

Next Day Delivery

Sleepsound Splendour 1800 Mattress corner

Sleepsnug Splendour 1800 Mattress

Was: £870.00

You Save: £501.00 (57.6%)

Now Only: £369.00

Next Day Delivery

Sleepsound Ortho 800 Mattress corner

Sleepsnug Ortho 800 Mattress

From: £229.00

Next Day Delivery

Hypnos Orthos Cashmere Mattress corner view

Hypnos Orthos Cashmere Pocket Sprung Firm Support Mattress

From: £890.40

Next Day Delivery

Breasley Synergy 9000 Mattress

Breasley Synergy 9000 Memory Foam Medium Mattress

From: £523.20

Delivered Within 7 Days

Shire Encapsulated Latex 2000 Mattress - Corner

Shire Encapsulated Latex 2000 Mattress

From: £660.00

Next Day Delivery

Breasley NuLife Eclipse Latex Mattress - Corner

Breasley NuLife Eclipse 1600 Pocket Sprung with 30mm of Latex Medium to Firm Mattress

From: £507.60

Delivered Within 10 Days

Sleepsound Refresh Memory Mattress corner

Sleepsnug Refresh Memory Mattress

From: £219.00

Next Day Delivery

75 Item(s)

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Most recent reviews in Kingsize (5ft)

  • Review for Relyon Original Memory Foam Mattress with Coolmax Cover

    Superb product and service

    Bought a mattress from a local bed shop,at a much dearer price had it a month before giving it to a charity. Cannot believe the comfort and quality of the Relyon mattress,the speed it was delivered and the service I received from the lady I spoke to.

    posted by Dave (18/05/2014)

    Quality
    Price
    Comfort
  • Review for Shire eco SOUND Mattress

    Excellent mattress very pleased

    I bought this with some reluctance simply because it was online and I had not seen it or tried it out. But I need not have worried. This is a superb mattress to sleep on and the quality is excellent. I can see what the original price was over £700 for the single and chuffed to bits I got it in the sale for over half price - bargain!

    posted by Brian (17/04/2014)

    Comfort
    Quality
    Price
  • Review for Sleepsnug Refresh 1500 Mattress

    Very Comfortable

    I find this mattress nice and firm at first, with a firm supportive base. As the foam warms a little it becomes softer to give just enough give to relieve pressure without becoming a soft mattress.

    posted by Rajeev (19/03/2014)

    Price
    Comfort
    Quality
  • Review for Sleepsnug Backcare Mattress

    Does what it says on the tin

    They said delivery on Friday, and it arrived on Friday.
    It is 20cm deep, and medium to firm which is a blessing for my slipped disc. I let it stand for most of the first day to ease some of the manufacturing smell. I wish I'd bought this straight after getting rid of my last orthopaedic mattress for my divan instead of a memory foam one. Trying to turn over in bed with a bad back on a memory foam mattress is a big problem, but not with this. £140 very well spent.

    posted by Blessing for a Bad Back (16/02/2014)

    Comfort
    Quality
    Price
  • Review for Breasley 1000 Posture Pocket Sprung with 50mm Reflex Foam Medium Mattress

    Brilliant service

    The service I got through buying this mattress online was very good. I was a bit hesitant at first about buying it online just incase it wasn't what I thought and could not do with the hassle of sending it back but the mattress is super comfy and I'm very happy with it - awesome price too!

    posted by Ben (01/12/2013)

    Price
    Comfort
    Quality
  • Review for Relyon Firm Support Superflex Foam Mattress

    Top Kip

    Never had such a good nights sleep, highly rate this mattress in Superking size

    posted by J33TCO (12/11/2013)

    Comfort
    Quality
    Price
  • Review for Sleepsnug Ortho Pocket 1000 Mattress

    Very pleased

    This mattress does what it says. Its very comfortable indeed and I have had some good nights sleep, really cosy and supportive.

    posted by Chris (06/09/2013)

    Price
    Comfort
    Quality
  • Review for Hypnos Pillow Top Elite Mattress

    Absolutely perfect mattress

    This mattress is absolutely sublime, I had heard of Hypnos before as being a luxury mattress brand and I have not been disappointed at all. My husband and I have slept exceedingly well on it and I think it is more than worth spending a little more for a superb night's sleep. The quick delivery also made the entire process very simple and pleasing.

    posted by Emily Bates (04/07/2013)

    Price
    Comfort
    Quality
  • Review for Hypnos Orthos Latex Pocket Sprung Firm Support Mattress

    thanks and great mattress

    Wanted to say thanks for all the help choosing this mattress, very pleased that I listened to the advice and went for this mattress.

    posted by Denzil, Warrington (06/06/2013)

    Comfort
    Quality
    Price
  • Review for Hypnos Orthos Silk Pocket Sprung Firm Support Mattress

    Top mattress

    top mattress, everything I wanted and more, the whole process was very easy and it was genuinely a pleasure, no stress

    posted by Ramires (06/06/2013)

    Comfort
    Quality
    Price

More on King Size

King size mattresses are becoming more and more popular on the market today and also more and more affordable. This mattress size larger than a traditional double mattress allows couples to share extra sleeping space for optimum comfort and is now produced by most of the manufacturers.

 

When choosing a new mattress, bear in mind that mattress sizes in the UK remain the same whichever manufacturer makes the mattress. This is sometimes not the case for divans and besteads. The industry standard for a king size mattress is 150cm x 200cm, which is 5’. European and North American sizes for kingsize can differ so be aware of this if you have imported your bed.

 

While mattress sizes are standardised in the UK bed industry, the depth of a king size mattress will depend on the structure and the fillings within the mattress. In most cases manufacturers use combinations of different fillings to offer different support and comfort levels on the various sleeping parts of the mattress.

 

Airsprung, Relyon, Joseph International or Healthbeds - whichever brand you choose, nearly all their mattresses will be available in a 5ft and you can choose from a variety of comfort levels, firmnesses, fillings, finishes and types. Including pocket sprung, memory foam and latex.

 

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