Firmness
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)
Certifications
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
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 & what's inside
- 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.
Who's it NOT for?
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.
Hypnos Wool Ortho Mattress
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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. Prices run from £499 to £1,099 depending on the size you choose.
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