Hypnos Wool Ortho Mattress
The Hypnos Wool Ortho is a firm pocket sprung mattress with natural wool fillings.
- Soft wool top over firm support
- Breathable fibres don't trap heat
- Minimises partner disturbance
£499
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At 26cm deep, the Hypnos Wool Ortho pairs Hypnos's ReActive 7-turn pocket springs with wool and breathable eOlus fibres under a Belgian damask cover, which means you get a supportive, traditional feel without the heat retention foam can bring. It carries a Hypnos 10-year guarantee and comes from an NBF-approved manufacturer. It's firm, so it suits back and front sleepers best, although lightweight side sleepers may find it a little too unyielding. Sizes run from UK Single through to Emperor, with EU sizes available too.
Mattress specifications
Firmness
Firm
Type
Pocket Spring
Depth (cm)
26
Number of Layers
4
Trial Period (nights)
Warranty (years)
10
Price Range
£499 to £1,099
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
BS 7177
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
If you sleep warm or simply prefer natural materials over memory foam, this mattress makes a strong case. The wool layer gives a soft, cushioned surface feel, while the eOlus fibres beneath let air and moisture pass through rather than trapping heat. Underneath, the ReActive 7-turn pocket springs respond independently to each sleeper, which means you and a partner get support matched to your own weight rather than a compromise between you. Certifications back it up: an NBF-approved manufacturer, BS7177 fire safety compliance and a Good Housekeeping Institute 2026 Award. Yes, it's firm, but for anyone who wants proper orthopaedic-style support with a natural, breathable top, that firmness is the point rather than a flaw.
Key features & layer details
Belgian damask cover
A breathable Belgian damask fabric tops the mattress. It lets air move through the sleep surface rather than sealing heat in.
Wool layer
Wool fillings give a soft, cushioned feel at the surface, which means the firm springs beneath don't feel harsh against your body. It's a natural choice if you prefer a traditional mattress over synthetic foams.
eOlus fibres
These fibres offer resilient body support while letting air and moisture pass through easily. Unlike foam, they don't hold onto heat or sweat, yet they still give a soft, foam-like feel.
ReActive 7-turn pocket springs
Each spring has seven turns and works independently, sensing the comfort and support needs of you and your partner and spreading downward pressure smoothly. In practice, that means full spinal support and less disturbance when one of you moves.
Layer details from mattressnextday.co.uk product page, September 2026.
Best suited for?
Back sleepers
The firm feel from the ReActive 7-turn pocket springs keeps the body supported, while the wool layer softens the surface so it never feels harsh.
Front sleepers
Firm support from the pocket springs helps keep you lifted on top of the mattress rather than sinking in, with a cushioned wool surface.
Warm sleepers
Breathable eOlus fibres and a Belgian damask cover let air and moisture pass through, so heat is not trapped the way it can be with foam.
Couples
Each pocket spring works independently, which means you and a partner get support matched to your own weight and less disturbance when one of you moves.
Eco-conscious buyers
Natural wool filling and breathable fibres give a traditional feel for anyone who would rather avoid memory foam and synthetic foam layers.
This is a firm mattress, so lightweight side sleepers may find it presses on hips and shoulders rather than letting them sink in. If you want a plush, hugging feel, or you specifically like memory foam's slow-sink sensation, look elsewhere. And note the retailer listing mentions no home trial, which some buyers will miss.
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.
Hypnos Wool Ortho Mattress
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FAQ's
Is the Hypnos Wool Ortho mattress firm or soft?
It's firm. The wool layer adds a soft, cushioned surface feel, but the ReActive 7-turn pocket springs underneath give solid, supportive push-back. It suits back and front sleepers well, although lightweight side sleepers may find it a little too firm.
Does the Hypnos Wool Ortho mattress have a guarantee?
Yes. The mattressnextday.co.uk listing states a Hypnos 10-year guarantee, which appears to be the manufacturer's own guarantee rather than the retailer's. Always confirm the terms with your chosen retailer before ordering.
How deep is the Hypnos Wool Ortho mattress?
It's 26cm deep, made up of a Belgian damask cover, wool fillings, eOlus fibres and the ReActive 7-turn pocket spring system. Standard fitted sheets should work fine at this depth.
Is the Hypnos Wool Ortho good for hot sleepers?
It's a sensible pick if you sleep warm. The eOlus fibre layer is designed to let air and moisture pass through rather than retaining heat or sweat the way foam can, and the damask cover is breathable too. Wool also helps regulate temperature naturally.
What sizes does the Hypnos Wool Ortho come in?
It comes in UK Single, Small Double, Double, King, Super King and Emperor, plus EU Single, EU Double and EU King.
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