Hypnos Premier Ortho Superb King Size Mattress
The Hypnos Premier Ortho Superb is a firm pocket sprung mattress from one of Britain's longest established bedmakers, an NBF-approved manufacturer making its mattresses in the UK.
- Genuinely firm feel
- Minimises partner disturbance
- Breathable fillings for warm sleepers
£1,049
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Hypnos Premier Ortho Superb Mattress
More available sizes
Mattress details
Mattress
Hypnos Premier Ortho Superb Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Orthopaedic
Natural
Eco-Friendly
Depth (cm)
27
Layers
4
Layer Details
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.
Key benefits
- Real space for two: At 75cm each for two people sharing, you can settle into your own patch rather than negotiating the middle of the bed.
- Less disturbance across a wider bed: The ReActive 6-turn pocket springs respond independently, and the extra width of a UK king puts more distance between you, so one restless sleeper matters less.
- Length for taller sleepers: The UK king is 10cm longer than the UK double, which means anyone approaching six foot stops sleeping with their feet at the edge.
- Firm support holds up when you share: A genuinely firm feel across the full 150cm width, so heavier and lighter partners each get proper resistance on their own side.
- Breathable fillings across a bigger surface: Cotton and Solotex recycled fibre let air move through the mattress, useful when two bodies are warming one bed all night.
This size suits you if...
You share the bed every night and a double leaves you brushing elbows, or one of you is on a different schedule and slips out hours before the other, where the independent springs and extra width keep the early start quieter. It also suits a taller sleeper, since the 200cm length means no more curling up short.
Consider another size if...
Your bedroom falls under our suggested 2.7m x 2.9m minimum, or you sleep alone. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m and keeps the same firm feel.
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FAQ's
How big is the Hypnos Premier Ortho Superb in a UK king?
The UK king measures 150 x 200cm, which is 5ft x 6ft 6in. That gives 75cm each for two people sharing, and the extra length over standard 190cm sizes suits taller sleepers. We suggest a bedroom of at least 2.7m x 2.9m, with more room feeling comfortable once wardrobes go in.
Is a UK king Hypnos Premier Ortho Superb worth it over the double?
For couples, usually yes. The UK king is 15cm wider than the UK double and 10cm longer, and because the ReActive 6-turn pocket springs work independently, the added distance between you reduces disturbance further when one of you moves or gets up early. Solo sleepers rarely need the extra width.
Does a UK king reduce partner disturbance on a firm mattress?
It helps. Firm mattresses transfer less wobble than soft ones to begin with, and this one's pocket springs respond to each sleeper separately. Add the UK king's 75cm each for two people sharing and a partner turning over, or leaving hours before you, is far less likely to wake you.
Is the UK king long enough for someone over six foot?
At 200cm, the UK king gives a sleeper around six foot roughly a head-to-footboard fit with room to spare, where 190cm sizes can feel short. If length is your only reason to size up, note the UK king and the UK super king are the same length, so the UK king is usually enough.
What room size do I need for this mattress in a UK king?
We suggest at least 2.7m x 2.9m, with 3.2m x 3.2m feeling comfortable. New build master bedrooms can shrink quickly once fitted wardrobes and bedside tables are in, so measure the usable floor rather than the room on the plan. If it's tight, the UK double needs at least 2.6m x 2.8m.