Firmness
Type
Pocket Spring
Depth (cm)
27
Number of Layers
4
Trial Period (nights)
Warranty (years)
10
Price Range
£749 to £1,649
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 want a genuinely firm mattress rather than a medium dressed up as one, this is a strong candidate. The listing states it as firm, and the construction backs that up: 6-turn ReActive™ pocket springs designed to sense and spread pressure under each sleeper independently, which means support that adjusts to your shape without transferring movement across the bed. The fillings are cotton and breathable Solotex™ recycled fibre, which helps regulate temperature, useful if you tend to run warm. It carries a 10-year Hypnos guarantee as stated on the MattressNextDay listing, meets the BS7177: 2008 fire safety standard, and is made in the UK. Yes, the top end of the price range is a real spend, but the materials and build quality justify considering it.
Key Features & what's inside
- Cotton sleep surface. A responsibly sourced cotton sleep surface that is naturally fire-resistant. It's the layer you'll actually feel, soft and breathable against the skin.
- Cotton. A cotton filling that helps regulate body temperature, which means less overheating on warm nights. It also adds natural comfort and a touch of extra support.
- Solotex™. A recycled fibre that is fully breathable, so air can move through the mattress rather than getting trapped. A quietly sustainable choice too.
- ReActive™ 6-Turn Pocket Springs. Each spring has six turns and works independently, sensing the support you and your partner need and spreading downward pressure smoothly. In practice, that means consistent spinal support and less partner disturbance.
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 shoulders and hips rather than cushioning them. If you prefer a soft, sink-in feel, or the contouring hug of memory foam, look elsewhere. Budget shoppers should note the larger sizes reach £1,649.
Hypnos Premier Ortho Superb Mattress
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Is the Hypnos Premier Ortho Superb mattress firm?
Yes. It's listed as firm, and the ReActive™ 6-turn pocket springs are built for total spinal and body support. That makes it a good fit for back and front sleepers who want a supportive, resistant feel, though lighter side sleepers may find it slightly too firm.
How deep is the Hypnos Premier Ortho Superb mattress?
It's 27cm deep. Standard fitted sheets should cope with that comfortably, though it's a substantial mattress, so factor in the weight if you'll be turning or moving it yourself.
Does the Hypnos Premier Ortho Superb come with a guarantee?
The MattressNextDay listing states a 10-year Hypnos guarantee. There's no sleep trial mentioned on that listing, so check the returns terms with your chosen retailer before you buy.
What sizes does the Hypnos Premier Ortho Superb come in?
Ten sizes: UK small single, single, small double, double, king, super king and emperor, plus EU single, double and king. Prices range from £749 to £1,649 depending on the size you choose.
Is the Hypnos Premier Ortho Superb good for hot sleepers?
It should help. The cotton fillings regulate body temperature and the Solotex™ recycled fibre layer is fully breathable, which means heat can escape rather than building up around you overnight. It's a sprung, natural-fibre build rather than foam, which generally sleeps cooler.
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