Feather & Black Arlen Mattress
The Feather & Black Arlen is a natural-fill pocket sprung mattress, made in the UK exclusively for Feather & Black.
- Natural fillings help you sleep cooler
- Double-sided, flip to extend its life
- 100-night trial
£899
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The Feather & Black Arlen combines 13,200 springs, including micro pocket springs, with a comfort layer of wool, mohair, silk and kapok, which means you get responsive support with a soft, breathable sleeping surface. The medium tension suits front, back or side sleepers. It sits firmly in the premium bracket, though the double-sided, flippable design should help it earn its keep over time. It comes with a 100-night comfort promise for an exchange if it doesn't suit, and free two man delivery to your room of choice.
Mattress specifications
Firmness
Medium
Type
Pocket Spring
Depth (cm)
25
Number of Layers
4
Trial Period (nights)
100
Warranty (years)
1
Price Range
£899 to £1,379
Best Sleeping Position(s)
Side Sleeping
Back Sleeping
Combination Sleeping
Certifications
Assessed from Feather & Black's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
The Arlen makes sense if you want traditional craftsmanship with natural materials. The kapok in the comfort layer is naturally hypoallergenic, breathable and moisture-wicking, which means it should help regulate temperature if you tend to sleep warm. The 13,200 springs include micro pocket springs that react to the slightest movement, so you feel supported without that dead, unresponsive sensation cheaper mattresses can give. It is double-sided, so you can flip it to extend its life, something many modern mattresses no longer allow. Yes, the price is steep, but the natural fills, high spring count and flippable construction go some way to justifying it.
Key features & layer details
Surface
A soft damask fabric cover, machine stitched for longevity and traditionally tufted. Tufting holds the fillings in place, which means fewer lumps developing over the years.
Comfort layer
A blend of natural wool, mohair, silk and kapok. Kapok is exceptionally durable, naturally hypoallergenic, highly breathable and moisture-wicking, which means a cooler, fresher feel through the night.
Support layer
Platinum 3D polyester that is fully recyclable at the end of its life. A small but welcome nod to sustainability in a category that often ends up in landfill.
Spring system
Individually wrapped pocket springs distribute body weight evenly for full-body support. Micro pocket springs react to the slightest movement, which means better contouring and less partner disturbance.
Layer details from featherandblack.com product page, September 2026.
Best suited for?
Side sleepers
Medium tension and micro pocket springs that react to the slightest movement mean the mattress contours to your shoulders and hips without feeling stiff.
Back sleepers
Individually wrapped pocket springs spread body weight evenly, which means medium-feel, full-body support that suits a lying-flat position.
Front sleepers
The medium tension is described as suiting front sleepers, with the springs giving responsive support so your hips are not left sinking too far.
Warm sleepers
Kapok in the comfort layer is breathable and moisture-wicking, which means a cooler, fresher feel through the night if you tend to sleep hot.
Allergy sufferers
Kapok in the comfort layer is naturally hypoallergenic, which makes this a sensible pick if you want natural fillings rather than synthetic ones.
If your budget doesn't stretch to the starting price, look elsewhere. Those wanting a distinctly firm or soft feel may find the medium tension a compromise. And if a long guarantee matters to you, the 1-year cover here is shorter than many brands offer.
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.
Feather & Black Arlen Mattress
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FAQ's
How firm is the Feather & Black Arlen mattress?
Feather & Black describe it as a medium tension offering adaptive support, ideal for front, back or side sleepers. In practice, medium suits most people, although lightweight side sleepers sometimes prefer something a little softer and heavier sleepers something firmer.
Can you flip the Feather & Black Arlen mattress?
Yes. The Arlen is double-sided and can be flipped, which helps the fillings settle evenly and extends the mattress's usable life. Many modern mattresses are one-sided, so this is a genuine point in its favour at a premium starting price.
Does the Feather & Black Arlen come with a trial?
Feather & Black offer a 100-night comfort promise. Be aware this is an exchange if you're not satisfied, not a full money-back refund, so it's slightly less generous than it might first appear.
How many springs does the Feather & Black Arlen have?
It has 13,200 springs, combining individually wrapped pocket springs with micro pocket springs. The pocket springs distribute your body weight evenly, while the micro springs respond to smaller movements for a more contoured feel.
What sizes is the Feather & Black Arlen available in?
It comes in UK Single, Small Double, Double, King and Super King. Delivery is free on all orders, with two man delivery to your room of choice, anticipated within 14 days of the product reaching the delivery depot.
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