Super King Mattresses
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A super king mattress gives you the most sleeping space of any standard UK size: 180 x 200cm (6ft x 6ft 6in), the same width as two single mattresses side by side. It’s ideal if you share with a partner who moves in the night, or with little ones who somehow end up in the middle by morning. Choose memory foam, pocket sprung or hybrid, in the firmness that suits you.
What Size is a Super King Mattress?
UK super king mattress dimensions measure 180cm wide by 200cm long (6ft x 6ft 6"). This makes it the largest standard mattress size in the UK - 30cm wider than a king size and 45cm wider than a double. To put it another way, a super king provides the same width as two single mattresses placed together, giving each sleeper their own generous space. You can visit our mattress size guide for more detailed advice.
How Heavy Is a Super King Mattress?
A super king mattress usually weighs between 25kg and 45kg, depending on material and depth. For example, memory foam and hybrid designs weigh more than pocket sprung. Due to their weight, we advise having at least two people to carry your new super king mattress, especially if you're moving it upstairs or around corners.
What Are the Benefits of a Super King?
A super king mattress transforms your sleep experience in several ways:
- Maximum Personal Space – The super king mattress size ensures each sleeper gets 90cm of width, so you're far less likely to invade your partner's side during the night.
- Reduced Partner Disturbance - The extra width means movement on one side of the bed is less likely to travel across and wake your partner.
- Room for the Whole Family - Ideal for parents with young children or pets who occasionally join them in bed.
- Better Sleep Quality - We all snooze better when we have enough space to get comfy!
- Luxury Feel - There's a reason hotels use larger beds - spreading out creates a more indulgent, restful sleep environment.
- Future-Proof Investment - If you're upgrading from a double or king, a super king ensures you won't outgrow your bed as circumstances change.
Super King Size Mattress Types
We have so many super king mattresses to choose from, in every comfort style to suit how you sleep:
- Super King Memory Foam Mattress - Moulds to your body's contours, relieving pressure points and absorbing movement so you won't disturb your partner.
- Super King Pocket Sprung Mattress - Each spring works independently to support different body zones, offering responsive comfort with excellent airflow.
- Super King Hybrid Mattress - Layers foam comfort on top of pocket spring support, delivering cushioning and bounce in one mattress.
- Super King Latex Mattress - Naturally hypoallergenic and highly breathable, offering responsive support that springs back quickly.
- Super King Gel Foam Mattress - Cooling gel particles draw heat away from your body, ideal if you tend to overheat at night.
- Super King Open Coil Mattress - Interconnected springs provide dependable, even support at an affordable price point.
- Super King Orthopedic Mattress - Firm, supportive layers designed to align your spine and ease pressure on joints, a solid choice if you suffer with back or joint pain.
- Eco-Friendly Super King Mattress - Crafted from sustainable, natural materials for environmentally conscious sleepers.
Still not sure? Take a look at our mattress buying guide or come and feel them in person at our Heckmondwike showroom.
Super King Mattress Firmness Levels to Choose From
Choosing the right firmness ensures proper support and comfort throughout the night. In our range, you'll find the following:
- Soft Super King Mattress - Plush, cushioned feel that allows your body to sink in; recommended for side sleepers and lighter individuals who need pressure relief at the shoulders and hips.
- Medium Firm Super King Mattress - The most versatile option, balancing cushioning with support; suits combination sleepers who change position throughout the night.
- Firm Super King Mattress - Solid, supportive surface with minimal sinkage; best for back sleepers, front sleepers, and those needing extra lumbar support.
Will a Super King Mattress Fit My Bed Frame?
Yes, a super king mattress fits any standard UK super king bed frame with internal dimensions of 180cm x 200cm. This includes divans, ottomans, and sleigh beds. Always check your frame's internal measurements before ordering, as decorative bed frames (particularly upholstered or sleigh styles) may have external dimensions larger than the mattress itself.
What Is the Best Super King Mattress?
The best super king mattress depends on your sleep position, firmness preference and budget. Side sleepers often prefer softer memory foam, while back and front sleepers usually need firmer support. We stock trusted brands including Dormeo and Sareer, with pocket sprung and hybrid options available at a range of price points to suit every budget.
How Much Is a Super King Mattress?
Prices for a super king size mattress vary depending on the material, depth and construction. Pocket sprung and memory foam models can start at a lower price point, while hybrid and natural fillings such as latex tend to cost more. Thicker mattresses with extra layers of support also add to the price. Compare our full range to find one that suits your budget.
How Soon Can You Deliver My Super King Mattress?
Standard delivery usually takes a few working days, with faster options available at checkout. We offer free delivery on all super king mattress orders, with no minimum spend across England, Scotland and Wales. Most mattresses arrive rolled and boxed, making them easy to carry and manoeuvre into any room.