The Cavendish Natural Firm 5'0 King Size Quick Ship
BED FRAME GUIDE
- Built to last
- 250kg tested
- Upholstered throughout
- Nothing to maintain
- 15 year guarantee
- Better airflow
- Built for heavier mattresses
- Supports your mattress
- Absorbs presssure
- 15 year guarantee
- 250kg certified
- Engineered for heavy mattresses
- 30cm deep storage
- Calibrated gas pistons
- 15 year guarantee
- 250kg certified
- Engineered for heavy mattresses
- 30cm deep storage
- Lift powered by OKIN
- 15 year guarantee
- Powered by OKIN
- 250kg certified
- Wireless remote
- Built for heavy mattresses
- 15 year guarantee
Extras & essentials
The firmest of our three Natural mattresses. Heritage construction, the deepest support layer we build below the flagship.
Why this is on clearance: a single King size 5'0 mattress with no logo label. Down from £1,349 to £1,147, 15% off. One available. Lot number 8.
Natural mattresses use wool, cotton, silk, cashgora and horsehair as the comfort layer rather than foam or latex. The reason is breathability. Natural fibres regulate temperature far better than synthetic fills, wick moisture, and have the lived-in feel that's been used in proper British bedmaking for generations. The Cavendish takes those fillings and sits them over 6,405 individually pocketed springs, the highest spring count in the Natural range, packed tightly enough to hold heavier frames and back sleepers level through the night.
This is the tier for back sleepers, heavier frames, larger couples sharing a bed, and anyone who wakes up sore on a softer mattress. It's also the right call if you sleep hot, since the natural fibres breathe in a way that foam never quite manages, even with gel infusion.
If you're choosing across the three Natural tiers, this is the call. Ashbourne is the soft, the deepest cushion. Harrow is the medium, the most universal choice. Cavendish is the firm, the heaviest support layer. Same natural-fibre character throughout, three different tensions.
Hand-built in our British workshop. Natural wool, cotton, silk, cashgora and horsehair comfort layer over 6,405 individually pocketed springs.
15 year mattress guarantee. White glove delivery anywhere in mainland UK. Quick Ship item, ready to dispatch.
Gee Golisz, Founder
Can you take away my old mattress?
Of course. Simply add Mattress Recycling to your order, or let our team know, and we will collect your old mattress for responsible recycling when we deliver your new one.
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Get StartedDimensions
Dimensions are not available for this product.
Why Choose a The Sleep Co.® Bed Frame?
Luxury you can see, quality you can feel, service you can trust.
| Feature | The Sleep Co® | Other Brands |
|---|---|---|
| Craftsmanship |
Handcrafted in Britain each piece built by upholsterers with decades of artistry, ensuring heirloom level quality. |
Mass produced at speed, with inconsistent attention to detail. |
| Materials |
Premium kiln dried hardwood frames with reinforced joints silent, strong and supportive for years. |
Softwood or MDF that can bow, creak and weaken over time. |
| Design |
Designer led aesthetics curated silhouettes, fabrics and finishes that feel timeless, not trend led. |
Generic shapes with limited choice and dated appeal. |
| Comfort & Support |
Precision engineered bases solid or sprung slats positioned for perfect mattress performance and lasting comfort. |
Basic, uneven slats that compromise comfort and durability. |
| Delivery & Assembly |
Complimentary white glove service to your room of choice, assembled with care, with all packaging removed. |
Kerbside drop off or flat pack self assembly. |
| Warranty |
15 year guarantee exceptional protection for your investment, far beyond the industry norm. |
Short term cover, often just 1–3 years. |
Because your bed should be more than furniture, it should be a masterpiece you wake up loving, every single day.
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Our experts will recommend products fitting best for your needs
