Harrison Spinks Winchester 13750 Mattress
The Harrison Spinks Winchester 13750 is a soft, natural-filled pocket sprung mattress made by an NBF-approved British manufacturer.
- Soft, cushioned feel
- Support reacts quickly as you move
- Breathable fibres suit hot sleepers
£1,249
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The Harrison Spinks Winchester 13750 stands 30cm deep and contains 13,750 springs across five layers, which means support that responds to small movements rather than one uniform push-back. Fillings include wool and mohair from Harrison Spinks' own Yorkshire farm, so there's no foam doing the comfort work here. It arrives flat rather than rolled and boxed, and it's a serious investment. If you want a traditionally made, chemical-free mattress with a soft feel, this is a strong candidate.
Mattress specifications
Firmness
Soft
Type
Pocket Spring
Depth (cm)
30
Number of Layers
5
Trial Period (nights)
Warranty (years)
10
Price Range
£1,249 to £2,399
Best Sleeping Position(s)
Side Sleeping
Certifications
BS 7177, British Wool
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
The appeal here is natural craftsmanship at scale. Five separate layers of springs, including Cortec pocket springs and Micro HD springs, react quickly to movement and give targeted support, which means less of that stuck-in-one-spot feeling. The fillings are wool, mohair, flax, sustainably sourced cotton and Ecotex fibres, materials that breathe well, so hot sleepers should find it more temperature-stable than foam alternatives. The wool is traceable British wool, and the whole thing meets the BS7177: 2008 low hazard fire standard without chemical treatments in the cover. Yes, it costs more than most boxed mattresses, but the construction and materials justify the gap for buyers who want longevity. A Harrison Spinks 10-year guarantee is listed with it.
Key features & layer details
Cover
An in-house woven, natural and chemical-free cover made from breathable Belgian damask fabric. That breathability helps heat escape rather than build up at the surface.
Top comfort layer
Layers of white wool and mohair, responsibly sourced from the sheep and Angora goats at the Harrison Spinks Yorkshire farm. These fillings give a soft, cushioned feel while wicking moisture away as you sleep.
Viscose wool layer
A blend of viscose wool derived from the wood pulp of eucalyptus, beech and pine trees. It cradles you in comfort while enhancing ventilation throughout the mattress.
Spring core
Five separate layers of springs featuring Cortec Pocket Springs and Micro HD springs, designed to react quickly to movements and provide targeted support. You feel this as support that adjusts to your shape rather than a single flat surface.
Bottom comfort layer
More white wool and mohair from the same Yorkshire farm, mirroring the top layer. This adds a base of natural cushioning beneath the springs.
Layer details from mattressnextday.co.uk product page, September 2026.
Best suited for?
Warm sleepers
Breathable Belgian damask, wool and viscose layers help heat and moisture escape, so it should feel more temperature-stable overnight than a foam mattress.
Eco-conscious buyers
Traceable British wool, mohair from the Harrison Spinks Yorkshire farm and a chemical-free cover mean the materials are natural, with no foam doing the comfort work.
Side sleepers
A soft top layer of wool and mohair over five spring layers cushions the shoulders and hips while the springs adjust to your shape.
Combination sleepers
Springs that react quickly to small movements give targeted support as you roll between positions, rather than one uniform push-back.
Allergy sufferers
A natural, chemical-free cover and wool, flax and cotton fillings suit anyone who wants to avoid chemically treated materials and foam in their bed.
This is a soft mattress, so if you prefer a firm, unyielding surface, or you're a heavier sleeper who needs more push-back, it's unlikely to suit you. It's also a significant spend, and it arrives flat rather than boxed, which can make delivery to awkward rooms trickier.
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 Winchester 13750 Mattress
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FAQ's
How firm is the Harrison Spinks Winchester 13750?
It's listed as soft. That means a gentle, cradling feel, which tends to suit side sleepers and lighter body weights. If you sleep on your front or prefer a firmer surface, this probably isn't the right pick.
How many springs does the Winchester 13750 have?
It contains 13,750 springs arranged in five separate layers, including Cortec Pocket Springs and Micro HD springs. The layered design is meant to react quickly to movement and give targeted support to different parts of your body.
Does the Harrison Spinks Winchester 13750 come rolled in a box?
No, it arrives flat rather than rolled and boxed, which is normal for natural-filled mattresses like this. It's worth measuring doorways and stairwells before ordering, as a flat 30cm-deep mattress is bulkier to move.
What is the Winchester 13750 made of?
The fillings include wool, mohair, Ecotex fibres, flax, sustainably sourced cotton and viscose wool, with a breathable Belgian damask cover. The wool and mohair come from Harrison Spinks' own Yorkshire farm, and the wool carries Authentic Traceable British Wool certification.
Does the Harrison Spinks Winchester 13750 have a guarantee?
The MattressNextDay listing states a Harrison Spinks 10-year guarantee. The free next day delivery shown on that page is the retailer's own offer, so check terms with whichever shop you buy from.
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