Hypnos Organics 4 Single Mattress
The Hypnos Organics 4 is a firm, double-sided pocket sprung mattress made from Soil Association certified organic materials, hand-crafted in Buckinghamshire by Royal Warrant holders.
- Latex eases hip & shoulder pressure
- Double-sided to even out wear
- Handmade in Buckinghamshire
£3,499
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Hypnos Organics 4 Mattress
More available sizes
Mattress details
Mattress
Hypnos Organics 4 Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Wool
Latex
Depth (cm)
29
Layers
6
Layer Details
Sleep surface
An organic wool and cotton sleep surface that breathes naturally. This helps regulate temperature, so you're less likely to overheat.
Side-stitching
Three rows of genuine hand-sewn side-stitching, which means the edges stay supportive right to the border. You can sleep or sit near the edge without feeling like you'll roll off.
Organic lambswool and peace silk
Layers of pure organic British lambswool and ethically farmed peace silk. These add soft, natural cushioning close to the surface.
Natural moisture-wicking layer
A natural blanket of cotton, hemp and flax that wicks moisture away. Useful if you tend to sleep warm or clammy.
Natural latex
A natural latex layer that relieves pressure across the body. You should feel this as gentle give under hips and shoulders despite the firm feel.
Pocket springs
Hypnos' ReActivePro 7-turn pocket springs respond individually to the shape of your body. This encourages natural spinal alignment for a more comfortable sleep.
Layer details from featherandblack.com product page, September 2026.
Key benefits
- Fits almost any room: At 90cm wide, it leaves floor space free even where the bed competes with a desk and wardrobe; allow at least 2.1m x 2.8m.
- Edges you can actually use: Hand-sewn side-stitching keeps support right to the border, which matters more on a narrow bed where you sleep closer to the edge.
- Easier to flip at this width: This is a double-sided mattress that needs turning, and the UK single is the most manageable size to handle.
- Breathable for warm sleepers: The organic wool and cotton surface lets heat escape, which means a teenager or guest who runs hot should sleep cooler.
- Simple, cheap bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked bedding of any size.
This size suits you if...
You sleep alone and want certified organic materials without sharing a bed to justify them, you're buying a long-term bed for a teenager and would rather buy once than replace twice, or your guest room deserves better than the usual afterthought mattress.
Consider another size if...
You like room to stretch out, or there's any chance two people will share this bed. We'd recommend the UK double instead: it's 45cm wider, the same length, and we suggest allowing at least 2.6m x 2.8m for it.
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FAQ's
Is the Hypnos Organics 4 in a UK single suitable for a bunk or mid sleeper?
We'd be cautious. The footprint is the standard 90 x 190cm, so it will fit the frame, but this is a substantial double-sided mattress that needs regular flipping, which is awkward on a raised bed. Check the frame's maximum mattress depth against the brand's specification before buying.
How much floor space does a UK single need?
The mattress itself is 90 x 190cm, and we suggest allowing at least 2.1m x 2.8m of floor space so you can walk round the bed and open drawers. That makes the UK single a realistic fit for box rooms, loft conversions with a narrow usable strip, and children's rooms full of everything else.
Is the Hypnos Organics 4 single a good choice for a child?
It's a lot of mattress for a child, but the case is stronger for a teenager. The firm, double-sided build is designed to last, the organic wool surface breathes well, and the natural latex eases pressure at hips and shoulders. Lightweight side sleepers, which many children are, may find the firm feel doesn't allow enough sink.
How does the UK single compare to the UK double for this mattress?
The UK single is 45cm narrower than the UK double, and the two are the same length. If the bed is for one person in a small room, the UK single makes sense; if you want space to spread out, the UK double needs a room of at least 2.6m x 2.8m by our guidance.
Where can I buy the Hypnos Organics 4 in a UK single?
Stockists for this size change over time, so the most reliable answer is the live comparison table on this page, where prices are updated as retailers change them. It's the same hand-crafted mattress wherever you buy it, so the sensible move is simply the best current price.