Firmness
Firm
Type
Pocket Spring
Depth (cm)
21
Number of Layers
5
Trial Period (nights)
Warranty (years)
Price Range
£1,602 to £3,150
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.
Choose this if you want a traditional, natural-fill mattress with a genuinely firm feel. The hand-nested calico pocket springs are stitched together by hand rather than glued, which means the spring unit stays stable and quiet over time. Layers of British fleece wool and cotton give a breathable sleeping surface, while the bamboo layer adds temperature regulation and hypoallergenic properties, useful if you run warm at night or react to synthetic fillings. Yes, it starts at £1,602.25, which is a serious outlay, but you are paying for hand-nesting and entirely natural upholstery rather than foam. Vispring also offers this model in Soft, Medium and Extra Firm tensions, so check you are ordering the tension you actually want.
Key Features & what's inside
- Bonded British fleece wool and cotton. A bonded layer of British fleece wool and cotton sits at the top. Bonding keeps the fillings in place, which means the surface stays smoother for longer.
- British fleece wool. A layer of pure British fleece wool. Wool breathes and wicks moisture, so the sleeping surface feels drier through the night.
- Bamboo. A bamboo layer chosen for its temperature-regulating and hypoallergenic properties. A sensible inclusion if you sleep hot or have sensitive skin.
- Layered British fleece wool and cotton. Further layered wool and cotton cushioning between you and the springs. This softens the transition onto the firm spring unit slightly, without undermining the overall firm feel.
- Hand-nested calico pocket springs. 1,326 vanadium steel pocket springs, each in its own calico pocket and hand-nested in a single layer. Hand-nesting means the springs are stitched to one another, giving stable, independent support across the whole surface.
Layer details from vispring.com product page, September 2026.
Who's it NOT for?
Skip this if you like a soft, sink-in feel: this is a firm mattress, and lightweight side sleepers may find it puts a little too much pressure on hips and shoulders. It is also a slim profile at 21cm plus doming, so if you want a deep, hotel-style look, it will not deliver that.
Vispring Bedstead Realm Firm Mattress
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How firm is the Vispring Bedstead Realm mattress?
Vispring describes this model as firm, with lasting support and a resilient, stable feel. It suits back and front sleepers who like a solid surface, although lightweight side sleepers may find it a little too firm. The same mattress is also made in Soft, Medium and Extra Firm tensions, so choose carefully at checkout.
How many springs does the Vispring Bedstead Realm Firm have?
It contains 1,326 hand-nested vanadium steel pocket springs, arranged in a single layer. Each spring sits in its own calico pocket and is stitched to its neighbours by hand, which means better edge-to-edge stability and less motion transfer than a glued spring unit.
How deep is the Vispring Bedstead Realm Firm mattress?
The overall depth is stated as 21cm, plus around 6cm of doming from the natural fillings, with a tolerance of plus or minus 2cm. That is slimmer than many modern mattresses, which is deliberate: it is designed to sit well on a bedstead frame.
What is the Vispring Bedstead Realm Firm made of?
The fillings are entirely natural: bonded and layered British fleece wool and cotton, plus a bamboo layer for temperature regulation and hypoallergenic properties. The springs are vanadium steel in calico pockets, with felt washers and high-quality ticking. There is no foam anywhere in the construction.
How much does the Vispring Bedstead Realm Firm cost?
Prices run from £1,602.25 to £3,150 depending on size, across UK Single, Double, King and Super King. It is undeniably expensive, but the price reflects hand-nested calico springs and all-natural upholstery, a level of handwork most mattresses at lower prices simply do not include.
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