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Harrison Spinks Coleridge Mattress
The Harrison Spinks Coleridge is a firm, natural-fill pocket sprung mattress at the luxury end of the market.
- Plush pillow top over firm support
- Silk & wool regulate temperature
- Chemical-free sleeping surface
£2,099
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The Harrison Spinks Coleridge is 35cm deep with 17,268 springs across seven layers, topped with a pillow top and filled with silk, cashmere, mohair, cotton, hemp, flax and British wool. There's no foam-heavy shortcut here: the comfort comes from natural fibres and micro springs, which means it should sleep cooler than synthetic alternatives. It's a serious investment, but the construction goes some way to justifying it. Sizes run from UK Single right up to Emperor.
Mattress specifications
Firmness
Firm
Type
Pocket Spring
Depth (cm)
35
Number of Layers
7
Trial Period (nights)
100
Warranty (years)
7
Price Range
£2,099 to £4,199
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
Assessed from the specification published by Feather & Black, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
Choose the Coleridge if you want firm support with a softer surface feel. The pillow top with micro springs gives you a gentle initial sink, while the seven layers of pocket springs underneath keep your spine aligned, which means you get cushioning without the mattress feeling soft overall. Hot sleepers should do well here: silk and wool absorb moisture and regulate temperature naturally. The British wool is traceable from farm to factory, and the sleeping surface is chemical-free, a genuine plus if you're sensitive to treated fabrics. Yes, it's expensive, but you're paying for 17,268 springs and fillings like cashmere and mohair rather than marketing. Feather & Black lists a 100-night comfort promise and a 7-year guarantee.
Key features & layer details
Pillow top
A cloud-like pillow top with built-in micro springs, which means a plush surface feel that keeps its shape rather than flattening the way a fibre-only topper can.
Natural fillings
Generous layers of 100% natural silk, cashmere, mohair, cotton, hemp, flax and British wool. Natural fibres breathe better than foam, so you're less likely to overheat.
Silk layer
Silk is the strongest natural fibre and is prized for moisture absorption and temperature regulation. In practice, that means a drier, more even sleeping temperature through the night.
Cashmere layer
Soft cashmere, taken as a byproduct from the fashion industry, known for its softness and insulation. It adds warmth in winter without trapping heat in summer.
British wool layer
Harrison Spinks has partnered with British Wool, so the wool is fully traceable from farm to factory. Wool also wicks moisture, helping regulate temperature.
Pocket springs
17,268 responsive springs across seven layers of high-density micro, Posturfil and Cortec™ pocket springs. Each spring moves independently, which means less partner disturbance and support that follows your body's contours.
Base layer
A chemical-free surface made from a wool and viscose blend. A reassuring detail if you'd rather avoid chemically treated materials next to your skin.
Layer details from featherandblack.com product page, September 2026.
Best suited for?
Warm sleepers
Silk and wool absorb moisture and regulate temperature, and there is no foam-heavy shortcut, so the surface should stay drier and cooler through the night.
Couples
Each of the 17,268 pocket springs moves independently, which means less partner disturbance when one of you shifts or gets up in the night.
Back sleepers
Seven layers of pocket springs give firm support that keeps your spine aligned, while the pillow top adds a gentle, cushioned feel on the surface.
Eco-conscious buyers
The British wool is traceable from farm to factory, and the fillings are all natural, including cashmere taken as a byproduct of the fashion industry.
Allergy sufferers
The sleeping surface is chemical-free, with a wool and viscose base layer, which is reassuring if you would rather avoid treated fabrics next to your skin.
This is a firm mattress, so lightweight side sleepers may find it doesn't let their shoulders and hips sink in enough, even with the pillow top. And at its starting price, it's simply out of reach for many budgets. If you prefer the slow-sink hug of memory foam, this responsive sprung feel won't suit you either.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Harrison Spinks Coleridge Mattress
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FAQ's
How firm is the Harrison Spinks Coleridge mattress?
It's listed as firm. The pillow top softens the initial feel slightly, but the underlying support is firm, so it suits back and front sleepers, and heavier side sleepers, better than lighter people who sleep on their side.
How many springs does the Harrison Spinks Coleridge have?
The specification lists 17,268 pocket springs, arranged in seven layers combining high-density micro, Posturfil and Cortec™ springs. That layered design means the mattress responds progressively: gentle at the surface, firmer and more supportive as you settle in.
Does the Harrison Spinks Coleridge come with a trial and guarantee?
Feather & Black offers a 100-night comfort promise and a 7-year guarantee. These are the retailer's own terms rather than a stated manufacturer offer, so check the terms wherever you buy.
What sizes does the Harrison Spinks Coleridge come in?
Six sizes: UK Single, Small Double, Double, King, Super King and Emperor. The mattress is 35cm deep, so check your fitted sheets will accommodate it.
Is the Harrison Spinks Coleridge good for hot sleepers?
It should be. The fillings are entirely natural: silk, wool, cashmere, mohair, cotton, hemp and flax all breathe and wick moisture far better than synthetic foams, and the silk layer is specifically noted for temperature regulation.
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