Firmness
Firm
Type
Pocket Spring
Depth (cm)
23
Number of Layers
3
Trial Period (nights)
Warranty (years)
Price Range
£13,899 to £17,599
Best Sleeping Position(s)
Certifications
Assessed from Vispring's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Everything in the sleep surface is natural fibre: British fleece wool, horsetail, silk, mohair and cotton, which means the mattress breathes well and helps regulate temperature. If you sleep hot, that matters more than any cooling gel gimmick. Beneath the upholstery sit two layers of hand-nested calico pocket springs made from vanadium steel, 2,520 of them in the 150 x 200cm size, which means each spring responds independently to your body rather than the bed moving as one unit. The borders are reinforced with coir and wool and four rows of hand side-stitching, so the edges stay supportive over time. In Firm tension, it suits heavier sleepers and back sleepers who want a stable, supportive feel.
Key Features & what's inside
- Upholstery - Top Layer. British fleece wool sits alongside hand-teased horsetail blended with real Shetland wool, silk and mohair, plus a Shetland wool and cotton blend, all encased in high-quality ticking. These natural fibres wick moisture and breathe, which means a cooler, drier sleep surface than synthetic foams tend to give.
- Springs. A two-layer construction of hand-nested calico pocket springs made from vanadium steel, with 2,520 springs in the 150 x 200cm size. Two layers working together means finer, more progressive support: gentle at first contact, firmer as you settle in.
- Borders. The borders are upholstered with protective coir and wool and finished with four rows of hand side-stitching. This anchors the springs to the edge of the mattress, which means firmer edge support and less of that roll-off feeling when you sleep near the side.
Layer details from vispring.com product page, September 2026.
Who's it NOT for?
This is a firm tension, so lightweight side sleepers may find it puts too much pressure on shoulders and hips; Vispring's softer tensions would suit them better. It is also a very significant outlay, and only UK King and Super King sizes are listed, so smaller beds are out. Anyone wanting a bed-in-a-box price should look elsewhere.
Vispring Sublime Superb Firm Mattress
View all mattresses
How firm is the Vispring Sublime Superb?
Vispring makes the Sublime Superb in four tensions: Soft, Medium, Firm and Extra Firm. This is the Firm version, which generally suits back sleepers and heavier body weights. If you are a lighter side sleeper, one of the softer tensions is likely to feel more comfortable.
How many springs does the Vispring Sublime Superb have?
It uses a two-layer, hand-nested calico pocket spring construction made from vanadium steel, with 2,520 springs in the 150 x 200cm size. Spring counts vary by mattress size, so other sizes will differ from that figure.
What is the Vispring Sublime Superb made of?
The upholstery uses British fleece wool, hand-teased horsetail blended with Shetland wool, silk and mohair, and a Shetland wool and cotton blend. The borders contain coir and wool with four rows of hand side-stitching, and the springs are vanadium steel in calico pockets.
How deep is the Vispring Sublime Superb mattress?
The stated depth is 23cm, with around 6cm of doming on top (give or take 2cm). Doming is the natural pillowing of the fibre fillings, so the overall profile feels deeper than the base measurement suggests. Deep fitted sheets are a sensible buy.
What sizes does the Vispring Sublime Superb come in?
It's listed in UK King and UK Super King, with prices from £13,899 to £17,599 depending on size. If you need a smaller size, this particular model may not be an option through the listed retailer.
Couldn't find an answer to your question? Send us a message