Super King Sized Mattresses

Shop super king mattresses in the UK, measuring 180 x 200cm for the most generous sleeping surface of any standard UK bed size. Available in memory foam, pocket sprung, and hybrid designs to suit a range of sleeping preferences and firmness requirements.

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    Salome Aloe Vera Memory Sprung Orthopaedic Mattress

    Aloe Vera Memory Sprung Orthopaedic Comfort Mattress The Salome Aloe Vera Memory Sprung…

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    Rhianna Grand Memory Foam Back Support Mattress

    Grand Memory Foam Back Support Mattress The Rhianna Grand Memory Foam Back Support…

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    Nehemiah Grand Memory Foam Pillow Top Mattress

    Luxury Memory Foam Pillow Top Mattress The Nehemiah Grand Memory Foam Pillow Top…

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    Mia Bella Open Coil Sprung Mattress

    Classic Open Coil Sprung Mattress for Everyday Comfort The Mia Bella Open Coil…

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    Eva Essential Pillow Top Mattress

    Essential Pillow Top Mattress for Added Softness The Eva Essential Pillow Top Mattress…

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    Eva Essential Back Support Mattress

    Essential Back Support Mattress with Firm Comfort The Eva Essential Back Support Mattress…

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Designed for modern living

Super King Mattresses: The Case for Going All the Way

A super king mattress at 180 x 200cm gives each person sleeping in it 90cm of width, which is exactly the same as a single bed provides one person. For couples who have spent years compromising on space, that number alone is often enough to settle the decision.

The super king is 30cm wider than a double and 30cm wider than a king, which is a substantial jump. In practical terms, it means both sleepers can move freely without disturbing each other, there is genuine room for a young child to join without anyone being pushed out, and the mattress itself has enough surface area to feel genuinely spacious rather than just adequate.

Pocket sprung super king mattresses work particularly well for couples because the larger the mattress, the more surface area over which movement can be distributed. A high spring count in a super king gives excellent point-by-point responsiveness, and the size means motion transfer is reduced further than in smaller sizes. Hybrid super king mattresses build on this with foam comfort layers that add pressure relief without sacrificing the breathability and responsiveness of springs.

Room requirements are the main practical constraint. A super king bed frame with mattress needs a room of at least 4 x 4 metres to sit without feeling oppressive, with 60cm of clearance on each accessible side as a minimum. In rooms that are just large enough, it is worth measuring and marking the full footprint on the floor before committing to the purchase.

Bedding is a practical consideration that catches people off guard. Super king bedding is not as widely stocked as king or double, so it is worth checking availability of duvet covers, fitted sheets, and mattress protectors in 180 x 200cm before buying the mattress, particularly if you have a specific brand or thread count preference.

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Frequently Asked Questions

A standard UK super king mattress measures 180 x 200cm, also referred to as 6ft wide. It is the largest standard UK mattress size, offering 30cm more width than a king and 45cm more than a double.

A super king bed requires a room of at least 4 x 4 metres to sit comfortably with adequate clearance. It is well suited to larger master bedrooms but can feel cramped in a standard-sized room. Always measure and mark the footprint before buying.

A king size mattress measures 150 x 200cm while a super king is 180 x 200cm, a difference of 30cm in width. This gives each person sleeping in a super king around 90cm of space, equivalent to a single bed for one person.

Yes, super king bedding is a specific size that needs to be purchased separately. Super king fitted sheets and duvet covers are less widely stocked than king or double sizes, so it is worth confirming availability before committing to a super king mattress.

Pocket sprung and hybrid super king mattresses are the best choice for couples who move frequently, as individually wrapped springs minimise the transfer of movement across the mattress. The larger surface area of a super king further reduces the impact of one person's movement on the other.