Hypnos Natural Luxury King Size Mattress
The Hypnos Natural Luxury is a medium firm pocket sprung mattress built around natural fillings, which means wool and cotton do the comfort work rather than foam.
- Breathable fillings don't trap heat
- Suits partners of different weights
- Fully recyclable natural fillings
£779
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Hypnos Natural Luxury Mattress
More available sizes
Mattress details
Mattress
Hypnos Natural Luxury Mattress
Size
Firmness
Medium Firm
Construction
Foam
Pocket Spring
Wool
Natural
Depth (cm)
26
Layers
5
Layer Details
Pure Belgian Damask Cover
A breathable Belgian damask fabric tops the mattress. It lets air move through the sleep surface, which helps the natural fillings below do their temperature work.
Wool
Wool gives a soft, cushioned feel, which means gentle give at the surface before you reach the springs. It suits those who prefer a traditional, natural mattress.
Cotton
Cotton helps regulate body temperature through the night. It also adds a degree of support alongside its natural comfort.
eOlus™ Fibres
These fibres offer resilient body support while letting air and moisture pass through easily, so you get a soft, foam-like feel without the heat retention foam can bring. Made without harsh chemicals, the fillings are 100% recyclable with no end-of-life disposal issues.
ReActive™ 8-Turn Pocket Springs
Each spring has 8 turns and works independently, sensing the exact comfort and support needs of you and your partner. In practice that means vertical pressure is spread smoothly, giving total spinal and body support.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- 75cm each when sharing: Two sleepers get 75cm of width apiece, enough to change position without brushing elbows or waking whoever is beside you.
- Springs that stay on your side: Each pocket spring compresses independently, so if one of you gets up hours before the other, movement stays largely where it starts.
- 200cm of length: At 6ft 6in long, the UK king adds 10cm over the UK double, welcome if either of you is approaching six foot.
- Natural fillings across a wider surface: Wool, cotton and eOlus fibres breathe rather than trap heat, and in a UK king you can shift to a cooler patch of bed easily.
- The step up most couples actually want: The UK king is 15cm wider than the UK double, a difference you notice nightly without the room demands of a UK super king.
This size suits you if...
You share the bed every night and have started waking each other up in a UK double, or one of you keeps different hours and the other feels every exit and return. It also suits couples where one partner is tall enough to appreciate the extra 10cm of length, or anyone routinely sharing with a dog who claims more than its fair share of mattress.
Consider another size if...
Your bedroom is smaller than our suggested 2.7m x 2.9m minimum, or you sleep alone. In a tighter room we'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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FAQ's
Is a UK king Hypnos Natural Luxury big enough for a couple?
Comfortably, for most. At 150 x 200cm you each get 75cm of width, and the independent pocket springs mean each sleeper is supported according to their own weight rather than averaged across the pair. If one of you sprawls, or a dog joins you most nights, the UK super king adds another 30cm of width.
Will the UK king reduce partner disturbance on this mattress?
It helps in two ways. The 8-turn pocket springs compress individually, so one person turning over or getting up early transfers little movement across the bed. The width does the rest: with 75cm each, you're less likely to be lying close enough to feel any of it in the first place.
Is the Hypnos Natural Luxury UK king long enough for tall sleepers?
At 200cm, or 6ft 6in, it gives you 10cm more length than the UK double. For anyone around the six foot mark, that stops feet hanging off the end or heads pressed against the headboard. If height is your main reason for upgrading, length is the gain here; the UK super king is the same length.
What room size do I need for this mattress in a UK king?
We suggest at least 2.7m x 2.9m, with something nearer 3.2m x 3.2m feeling genuinely comfortable once wardrobes and bedside tables go in. New build master bedrooms can be tighter than they look on the plan, so measure the floor with furniture positions marked before committing.
Where can I buy the Hypnos Natural Luxury in a UK king?
Compare the retailers listed on this page. The prices shown here are live and updated as retailers change them, so what you see reflects the current market rather than a snapshot. Availability of the UK king can differ from the other sizes, which is why each size has its own price comparison.