Firmness
Type
Pocket Spring
Depth (cm)
33
Number of Layers
4
Trial Period (nights)
60
Warranty (years)
5
Price Range
£711 to £757
Best Sleeping Position(s)
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
The main draw is natural, breathable comfort. Wool wicks moisture and Tencel lyocell has a naturally cool touch, which means hot sleepers should feel noticeably less clammy than on an all-foam design. Silentnight says the Platinum comfort layer gives the same pressure relief as memory foam with far better airflow, so you get cushioning without the heat build-up. Underneath, 2000 Mirapocket springs adjust to your movements while 1000 mini pocket springs add extra comfort and breathability. Yes, £711 to £757 is a real spend, but a foam-free build at this depth, backed by a 60-night trial and 5-year guarantee, justifies it for sleepers who prioritise natural materials and a softer, medium/soft feel.
Key Features & what's inside
- Tencel™ Lyocell sleep surface. A silky, soft-touch fabric woven to allow airflow and move moisture away from you, which means the surface feels naturally cool. It's a small detail you'll appreciate on warm nights.
- Platinum comfort layer. Silentnight states this is 10x more breathable than memory foam with the same amount of pressure relief. In practice that means a cocooning, cushioned feel without the trapped heat foam can bring.
- British Wool Comfort Layer. Wool from Cheviot sheep gives a flexible, breathable layer with natural body and bounce. It's part of what keeps this mattress foam free while still feeling comfortable and supportive.
- Mirapocket® springs and mini pocket springs. 2000 Mirapocket springs adjust to your movements through the night, so support follows you as you change position. A further 1000 mini pocket springs sit alongside for added comfort and increased breathability.
Layer details from silentnight.co.uk product page, September 2026.
Who's it NOT for?
This isn't the mattress for you if you prefer a firm surface, as the medium/soft feel is designed to cushion rather than hold you rigidly. Heavier sleepers who need firmer support may sink in more than they'd like. Size choice is limited too: it only comes in UK Double and UK King.
Silentnight British Wool 3000 Mattress
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Is the Silentnight British Wool 3000 mattress foam free?
Mostly, yes. Silentnight's product page states it is foam free and uses natural flame retardants. Comfort comes from British wool, a Tencel lyocell surface and the Platinum comfort layer, which the brand says matches memory foam's pressure relief while being far more breathable.
How firm is the Silentnight British Wool 3000?
Silentnight rates it as medium/soft. That means a plush, cushioned feel that suits side sleepers and anyone who likes to sink in a little, rather than sleepers who want a firm, supportive-feeling surface.
Does the Silentnight British Wool 3000 come with a trial?
Yes. Silentnight offers a 60-night trial, so you can sleep on it at home and return it if it doesn't suit you. It also comes with a 5-year guarantee and delivery within 14 days.
How many springs does the Silentnight British Wool 3000 have?
3000 in total: 2000 Mirapocket springs that adjust to your movements through the night, plus 1000 mini pocket springs that add comfort and increase breathability.
What sizes does the Silentnight British Wool 3000 come in?
Just two: UK Double and UK King, priced from £711 to £757. If you need a Single or Super King, you'll have to look at other models.
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