Super king size mattresses

Invest in a higher standard of sleep with a Feather & Black super king mattress. Each mattress is made from natural materials for precision postural support and lasting comfort. Crafted in Britain using fine natural fillings — including temperature-regulating wool, supple silk, and springy horsehair — each super king size mattress responds intuitively to body weight and heat. Explore luxurious pillow top or versatile zip and link configurations, designed to complete our handcrafted super king beds.

32 products
Sort By
Tension
Soft Medium Firm Very Firm Split
Brand
Feather & Black Flaxby Flaxby Platinum Harrison Spinks Hypnos Sleepeezee Vispring
Features
Advanced Gel Memory Foam Natural Fillings Orthopedic Pillow Top Pocket Springs
Filling
Advanced Gel Alpaca Wool Bamboo Cashmere Cotton Flax Hemp Latex Memory Foam Mini Springs Mohair Pocket Springs Rebound Wool Silk Wool
Spring Count
1,000 - 4,999 5,000 - 9,999 10,000 - 14,999 Over 20,000
Price
£999 - £10,999

The home of mattress mastery

Uninterrupted sleep requires an environment designed around your biomechanics. A super king bed mattress distributes weight dynamically, ensuring neither sleeper experiences surface tension shifts or roll-together. Individually encased spring systems work beneath hand-laid upholstery, instantly adjusting to every movement. To determine room proportions and bed frame pairings, consult our expert mattress size guide.

Anchoring a super king mattress within a master suite demands thoughtful spatial balance. Positioning the bed to encourage natural energy flow creates a serene, grounded environment; explore our guidance on feng shui bedroom design. To complement your layout with sophisticated texture and palette choices, discover colour inspiration through our guide on master bedroom colours.

Frequently asked questions

What size is a super king mattress?

Super king size mattresses are W180cm x L200cm (6 feet wide x 6 feet 6 inches long), wider than a standard king size mattress by 30cm (1 foot) offering ample space for an undisturbed, peaceful sleep.

How wide is a super king mattress?

Super king mattresses are 180cm wide or 6 foot 6 inches across with a length of 6 feet or 200cm. Full a full list of mattress dimensions, visit the size guide.

What makes a super king size mattress good quality?

We offer a range of super king size mattresses with a spread of budget ranges available. When it comes to quality, we have exacting standards when it comes to craftsmanship, fillings and support. Our most luxurious super king mattresses have various tensions to choose from, the finest fillings and are available as zip & link mattresses too.  Read our mattress guide to help you decide which is the best mattress for you.

Do you need super king pillows for a super king bed?

Standard pillows leave a noticeable gap across a wider bed frame. Super king pillows span the entire width when placed side by side, creating a balanced visual proportion and complete head support. Standard pillows function well, but super king pillows are ideal.

What sheet depth is required for a luxury super king mattress?

Luxury mattresses with deep natural fillings or integrated pillow top layers feature a higher profile than standard mattresses. Extra-deep fitted sheets (typically 32cm to 40cm depth) allow the internal natural fibres to expand fully without compressing the cushioned surface.

How should I maintain a natural super king mattress?

Rotate your mattress regularly during the initial months to encourage natural fillings to settle evenly. Turn double-sided models according to seasonal care guidelines, and protect the damask cover with a breathable mattress protector. Learn more guidance in our mattress care guide

How long does a natural super king size mattress last?

Crafted with hand-tufted natural fillings and resilient steel pocket springs, a luxury super king size mattress maintains its structural integrity and support profile for ten years or more when maintained with regular rotation. We recommend consulting our mattress lifespan guide for expert advice on preserving the longevity of your investment.