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Home › Super King Size Mattresses - 6ft Mattresses

Super King Size Mattresses - 6ft Mattresses

Our super king size mattresses measure 6ft wide and 6ft 6 inches long, making them considerably more spacious than a king size or double mattress. These large 6ft mattresses are ideal for couples that like to have their own space in bed or even for individual adults who want a longer, wider mattress to sprawl out on. Browse our full range of super king size mattresses below.

  • Price: —

54 products

  • Classic Essential 1000 Mattress

    Classic Essential 1000 Mattress

    From £375 Original price was: £375.£263Current price is: £262.50.
    Order Now and Get by July 12, 2025
  • Classic Pocket 1000 Mattress

    Classic Pocket 1000 Mattress

    From £425 Original price was: £425.£298Current price is: £297.50.
    Order Now and Get by July 12, 2025
  • Classic Cashmere 1000 Mattress

    Classic Cashmere 1000 Mattress

    From £445 Original price was: £445.£312Current price is: £311.50.
    Order Now and Get by July 12, 2025
  • Classic Cool 1000 Mattress

    Classic Cool 1000 Mattress

    From £470 Original price was: £470.£329Current price is: £329.
    Order Now and Get by July 12, 2025
  • Snooze Calm Mattress

    Snooze Calm Mattress

    From £435 Original price was: £435.£348Current price is: £348.
    Order Now and Get by July 26, 2025
  • Snooze Rest Mattress

    Snooze Rest Mattress

    From £450 Original price was: £450.£360Current price is: £360.
    Order Now and Get by July 26, 2025
  • Snooze Easy Mattress

    Snooze Easy Mattress

    From £460 Original price was: £460.£368Current price is: £368.
    Order Now and Get by July 26, 2025
  • Citrine Mattress

    Citrine Mattress

    From £770 Original price was: £770.£385Current price is: £385.
    Order Now and Get by July 12, 2025
  • Gel Essence Comfort Mattress

    Gel Essence Comfort Mattress

    From £591 Original price was: £591.£473Current price is: £472.80.
    Order Now and Get by July 1, 2025
  • Melbury Mattress

    Melbury Mattress

    From £980 Original price was: £980.£490Current price is: £490.
    Order Now and Get by July 12, 2025
  • Gel Essence Ortho Mattress

    Gel Essence Ortho Mattress

    From £615 Original price was: £615.£492Current price is: £492.
    Order Now and Get by July 1, 2025
  • Amatrix Mattress

    Amatrix Mattress

    From £1005 Original price was: £1005.£503Current price is: £502.50.
    Order Now and Get by July 12, 2025
  • Amethyst Mattress

    Amethyst Mattress

    From £720 Original price was: £720.£504Current price is: £504.
    Order Now and Get by July 12, 2025
  • Rosaline Mattress

    Rosaline Mattress

    From £720 Original price was: £720.£576Current price is: £576.
    Order Now and Get by July 12, 2025
  • Nova Balance Mattress

    Nova Balance Mattress

    From £747 Original price was: £747.£598Current price is: £597.60.
    Order Now and Get by July 12, 2025
  • Ironstone Mattress

    Ironstone Mattress

    From £875 Original price was: £875.£613Current price is: £612.50.
    Order Now and Get by July 12, 2025
  • Ruby Mattress

    Ruby Mattress

    From £1230 Original price was: £1230.£615Current price is: £615.
    Order Now and Get by July 12, 2025
  • Zircon Mattress

    Zircon Mattress

    From £670
    Order Now and Get by July 12, 2025
  • Nova Comfort Mattress

    Nova Comfort Mattress

    From £846 Original price was: £846.£677Current price is: £676.80.
  • Nova Soothe Mattress

    Nova Soothe Mattress

    From £846 Original price was: £846.£677Current price is: £676.80.
  • Burley Mattress

    Burley Mattress

    From £895 Original price was: £895.£716Current price is: £716.
    Order Now and Get by July 12, 2025
  • Gel Plush Comfort Mattress

    Gel Plush Comfort Mattress

    From £900 Original price was: £900.£720Current price is: £720.
    Order Now and Get by July 1, 2025
  • Nova Ortho Mattress

    Nova Ortho Mattress

    From £909 Original price was: £909.£727Current price is: £727.20.
  • Gel Plush Ortho Mattress

    Gel Plush Ortho Mattress

    From £936 Original price was: £936.£749Current price is: £748.80.
    Order Now and Get by July 1, 2025

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What size is a super king mattress?

A super king size mattress measures 6 feet wide (180cm) and 6 feet 6 inches long (200cm), making it the perfect mattress for those with a little extra floor space in their bedroom and a desire to get really comfortable in their bed. Whether you move around a lot at night time, like to sprawl out or just want to sit cosily in the middle of a huge bed, the super king size mattress is for you. The depth of your super king size mattress will depend on which mattress you choose, whether that be pocket sprung, memory foam, soft or firm, but the length and width will always be the same.

How heavy is a super king size mattress?

Being the largest standard mattress size means that super king size mattresses are quite heavy, although the weight of your mattress will depend on the type of mattress you choose. You can expect your mattress  to weigh roughly between 130 pounds (59kg) and 180 pounds (82kg).

What is the best super king size mattress?

The best super king size mattress for you will depend on your own body type and preferences. If you have spinal or neck issues, then a pocket sprung super king size mattress might be best for you, but if you want a mattress that is supportive and moulds to the contours of your body, then a firm super king size memory foam mattress might suit you better. If you’re looking for the ultimate in mattress comfort, then check out our 6’0” Super King Blenheim VIP 35000 Mattress.

Buy 6ft mattresses and more with Sussex Beds

Browse our full range of super king size mattresses online or check out our super king size divan beds and super king size divan bases. UK delivery, assembly service and disposal of existing furniture services available.

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Sussex Beds™ is a true independent family business and this is immediately obvious with its warm welcome & relaxed shopping experience. Our team are fully trained to guide you in finding a quality bed that meets your specific needs.

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