Flaxby Natural Silkstone Lambswool Dual Season 13750 Mattress
The Flaxby Natural Silkstone Lambswool Dual Season 13750 Mattress has a dual-sided design woven with fine British wool, which means you can use one side in summer and the other in winter.
- Two sides for summer & winter
- Naturally temperature regulating
- Made without glue, chemicals or foam
£2,299

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This is a pocket spring mattress from Flaxby, made without glue, chemicals or foam. It uses natural fibres including lambswool, cashmere, cotton and silk, and it's designed with one side for summer and one for winter. It's 39cm deep and comes in a UK single, UK small double, UK double, UK king, UK super king and UK emperor. Dreams offers a 100-night comfort guarantee. Flaxby doesn't publish a firmness rating.
Mattress specifications
Firmness
Type
Pocket Spring
Depth (cm)
39
Number of Layers
Trial Period (nights)
Warranty (years)
Price Range
£2,299 to £4,599
Certifications
Assessed from the specification published by dreams.co.uk, captured November 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
The main draw is the dual-sided design: one side for summer, one for winter, so the mattress can follow the seasons rather than leaving you too warm or too cool. It's naturally temperature regulating, which suits anyone who wants a natural approach to staying comfortable overnight. The filling is a blend of natural fibres, including lambswool, cashmere, cotton and silk, with no glue, chemicals or foam, and it's recyclable at end of life. It's grown in Yorkshire on Harrison Spinks' organic farm. At 39cm deep it's a substantial mattress, so check your bed frame and bedding first.
Key features & layer details
We’re still collecting information on this mattress. Unfortunately, we don’t have its key features yet.
Best suited for?
Warm sleepers
The dual-sided design gives one side for summer and one for winter, and the natural temperature regulation helps you avoid overheating through the warmer months.
Eco-conscious buyers
It is made from lambswool, cashmere, cotton and silk with no glue, chemicals or foam, and it is recyclable at the end of its life.
Allergy sufferers
Its natural fibre filling is made without glue, chemicals or foam, which suits anyone who wants to keep synthetic materials out of their bed.
Couples
The size range runs up to UK super king and UK emperor, giving two people plenty of room on a pocket spring mattress.
If you want to know the firmness before you buy, this might not be the best choice, as Flaxby doesn't publish a rating. The product page offers medium soft and medium firm options without saying which is which. If you prefer a foam mattress or a thinner one, the natural build and 39cm depth may not suit you.
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.
Flaxby Natural Silkstone Lambswool Dual Season 13750 Mattress
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FAQ's
How firm is the Flaxby Natural Silkstone Lambswool Dual Season 13750?
Flaxby doesn't publish a firmness rating for this mattress. The product page offers medium soft and medium firm options without saying which is which, so check the firmness before you order.
What sizes does the Flaxby Natural Silkstone Lambswool Dual Season 13750 come in?
It comes in a UK single, UK small double, UK double, UK king, UK super king and UK emperor. The UK emperor is the largest, so it suits couples who want extra width.
How deep is the Flaxby Natural Silkstone Lambswool Dual Season 13750?
It's 39cm deep, which is a thick mattress. Check that your bed frame and fitted sheets can take that depth before you buy.
Is the Flaxby Natural Silkstone Lambswool Dual Season 13750 good for hot sleepers?
It should help, as it's naturally temperature regulating and has a dual-sided design for summer and winter. Using the summer side in warmer months suits sleepers who run hot, although Flaxby doesn't publish cooling figures.
What is the Flaxby Natural Silkstone Lambswool Dual Season 13750 made from?
It's a pocket spring mattress made with a blend of 10 natural fibres, including lambswool, cashmere, cotton and silk. It's designed without glue, chemicals or foam, and it's recyclable at end of life.
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