Hypnos Organics 3 Super King Mattress
The Hypnos Organics 3 is a firm, 31cm deep pocket sprung mattress built almost entirely from natural and organic materials: British lambswool, natural latex and organic cotton, with Soil Association certified organic status and an endorsement from the Eden Project.
- Breathable organic wool & latex
- Hand-sewn edges, no roll-off feeling
- Firm support for back & front sleepers
£4,199
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Hypnos Organics 3 Mattress
More available sizes
Mattress details
Mattress
Hypnos Organics 3 Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Wool
Latex
Depth (cm)
31
Layers
3
Layer Details
Sleep surface
An organic wool and cotton breathable sleep surface, which means a naturally temperature-regulating feel against you rather than a synthetic cover. It's finished with three rows of genuine hand-sewn side-stitching for edge-to-edge border support.
Comfort layers
Five fleeces of organic British lambswool sit alongside two layers of natural latex and Adaptiv comfort springs. The wool wicks moisture and the latex adds gentle, responsive cushioning above the main springs.
Support
ReActivePro 7-turn pocket springs respond to the shape of your body, encouraging natural spinal alignment. Because each spring moves independently, you're less likely to feel a partner shifting during the night.
Layer details from featherandblack.com product page, September 2026.
Key benefits
- Real distance from a restless partner: With 90cm each for two people sharing, movement on the other side of the bed happens far enough away to sleep through.
- Independent springs across a wider bed: ReActivePro pocket springs move individually, which means a partner turning over on their 90cm barely registers on yours.
- Room for the whole household: When children appear at 3am or the dog treats the bed as routine, 180cm of width means everyone keeps a workable share.
- Usable edge to edge: Three rows of hand-sewn side-stitching keep the border supportive, so all 6ft of width is genuinely sleepable rather than a soft perimeter you avoid.
- Cool sleeping at scale: Organic wool and natural latex breathe better than synthetic foam, and the extra space between you both helps hot sleepers even further.
This size suits you if...
You share the bed every night and a UK king still feels crowded, you sleep next to someone genuinely restless and want distance rather than another comfort layer, or children and pets regularly join you and you'd like everyone to keep some space. Your room should allow at least 3m x 2.9m for this size to sit comfortably.
Consider another size if...
Your bedroom falls short of the 3m x 2.9m we suggest for a UK super king. We'd recommend the UK king instead: it's 30cm narrower, the same length, and needs at least 2.7m x 2.9m.
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FAQ's
How much wider is the Hypnos Organics 3 super king than the king?
The UK super king is 30cm wider than the UK king, and the two sizes are the same length. That extra width all goes into personal space: 90cm each for two people sharing, which is where the difference shows if one of you is a restless sleeper.
What room size do I need for the Hypnos Organics 3 in a UK super king?
We suggest at least 3m x 2.9m. That's our own guidance rather than the manufacturer's, and it allows you to walk round the bed and open drawers without squeezing past. In a period property or a large master bedroom this size often looks better proportioned than a UK king.
Is the Hypnos Organics 3 super king hard to get upstairs?
It can be. This is a 31cm deep pocket sprung mattress filled with wool and latex, so it's substantial and won't fold like a boxed foam mattress. Measure your stairwell, landing turns and door swings before ordering, and check the retailer's delivery access guidance for the UK super king specifically.
Is a super king big enough for a couple with children climbing in?
It's the best mainstream size for it. With 180cm of width, a child arriving in the night takes a share without pushing either adult to the edge, and the hand-sewn side-stitching means the border still supports whoever ends up sleeping there.
Where can I buy the Hypnos Organics 3 in a super king?
Availability shifts, so the most reliable answer is the live comparison table on this page, which updates as retailers change their listings and prices. Stock of the UK super king can differ from smaller sizes, so it's worth checking here rather than assuming every Hypnos stockist carries it.