Silentnight British Wool 2200 Pocket Super King Mattress
The Silentnight British Wool 2200 Pocket Mattress is a hybrid with a natural leaning: a British wool comfort layer from Cheviot sheep sits above 2,200 springs in total, which means you get temperature regulation as well as responsive support.
- Breathable wool for warm sleepers
- Soft, foam-free feel
- 60-night trial & 5-year guarantee
£879
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Silentnight British Wool 2200 Pocket Mattress
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Mattress details
Mattress
Silentnight British Wool 2200 Pocket Mattress
Size
Firmness
Soft
Construction
Foam
Pocket Spring
Hybrid
Wool
Memory Foam
Depth (cm)
29
Layers
4
Layer Details
Tencel™ Lyocell sleep surface
A silky, soft-touch material woven to allow airflow, which means heat is less likely to build up where your body meets the mattress. It also moves moisture away from you as you sleep.
Platinum comfort layer
Silentnight says this layer is 10x more breathable than memory foam while offering the same pressure relief. In practice that should mean a cocooning, cushioned feel without the warmth memory foam is known for.
British Wool Comfort Layer
Wool from Cheviot sheep, a flexible and breathable material that helps keep you cool in summer and warm in winter. It's the natural heart of this mattress.
Mirapocket® springs and mini pocket springs
1,200 Mirapocket® springs adjust to your movements through the night, which means support stays consistent as you shift position. A further 1,000 mini pocket springs add comfort and increase breathability.
Layer details from silentnight.co.uk product page, September 2026.
Key benefits
- 90cm of width each: Two people sharing get 90cm each, which means a restless partner can turn over all night without dragging you awake with them.
- Room for the whole household: When children wander in during the small hours, or a large dog treats the bed as its own, the extra width keeps everyone off the edges.
- Cool across a big surface: Wool and the Tencel™ Lyocell surface breathe across the full 180cm, useful when three bodies in one bed would otherwise turn it into a heat trap.
- Springs that keep movement local: The 1,200 Mirapocket® springs respond individually, and combined with the width of a UK super king, one sleeper's shifting rarely reaches the other side.
- Fills a large master properly: In a period property or a big new build main bedroom, a UK king can look oddly small; the UK super king sits in proportion with the space.
This size suits you if...
You share the bed every night and want the most sleeping space a standard UK size offers, your partner is restless enough that distance matters more than any comfort layer, or children and pets regularly join you and everyone still needs their share. It also suits you if your main bedroom is large and a smaller bed would look lost in it.
Consider another size if...
Your bedroom falls short of the 3m x 2.9m we suggest for a UK super king, or you'd struggle to get something this wide up the stairs. We'd recommend the UK king instead: it's 30cm narrower, the same length, and we suggest at least 2.7m x 2.9m for it.
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FAQ's
What are the dimensions of the Silentnight British Wool 2200 super king?
It measures 180 x 200cm, which is 6ft x 6ft 6in. That makes it the widest standard UK size, 30cm wider than the UK king and exactly the same length, so you gain elbow room rather than legroom by sizing up.
What size room do I need for the Silentnight British Wool 2200 in a UK super king?
We suggest allowing at least 3m x 2.9m. That gives you space to walk round the bed and open drawers without shuffling sideways. In a loft conversion, check the slope too: a bed this wide limits which wall it can sit against. This is our guidance rather than Silentnight's.
Is a UK super king better than a UK king for a restless partner?
Usually, yes. The UK super king is 30cm wider than the UK king, giving each of you 90cm when two people share. The 1,200 Mirapocket® springs already respond to movement individually, but at this width the sheer distance does most of the work. Their tossing simply happens further away from you.
Is this super king big enough for children or pets joining at night?
It's the best-placed size for it. With 6ft of width, a small child climbing in at 3am, or a large dog who considers the bed shared territory, doesn't force anyone to the edge. The breathable wool layer helps too, since extra bodies tend to raise the temperature.
Where can I buy the Silentnight British Wool 2200 in a super king?
Compare the retailers listed on this page. The prices shown here are live and updated as retailers change them, so it's worth checking back if you're not ready to buy today. Availability in the UK super king can differ from the smaller sizes, so don't assume every stockist of the mattress carries it.