Harrison Spinks Emerald 16500 Pocket Super King Mattress (Soft to Medium Feel)
The Harrison Spinks Emerald 16500 is a handcrafted UK pocket spring mattress with a soft to medium feel, built from natural fillings including British wool, cotton, hemp and flax.
- Natural fillings help regulate heat
- Less motion transfer for couples
- Handcrafted in the UK
£2,779
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Harrison Spinks Emerald 16500 Pocket Mattress (Soft to Medium Feel)
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Mattress details
Mattress
Harrison Spinks Emerald 16500 Pocket Mattress (Soft to Medium Feel)
Size
Firmness
Medium Soft
Construction
Pocket Spring
Wool
Natural
Depth (cm)
29
Layers
5
Layer Details
Comfort fillings
Layers of natural British wool sit at the top, shaping around your body as you settle. Wool is naturally breathable, so it cushions without trapping heat.
Comfort fillings blend
Beneath the wool sits a blend of British wool, hemp and flax. This mix helps regulate temperature, which means you're less likely to be woken by warm nights or cold snaps.
Comfort fillings blend
A further blend of cotton, hemp and flax fibres adds soft, breathable padding. It keeps the comfort layers airy rather than dense.
Support system
700 Cortec™ Quad springs, encased in cloth pockets and secured in groups of four, form the core. They respond to your weight, shape and movement individually, so support adjusts to you rather than the person next to you.
Mini springs
15,800 mini springs deliver a slightly bouncy comfort layer with small pockets for airflow throughout the mattress. They add responsiveness where foam layers would simply compress.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Real distance from a restless partner: At 90cm each, most turning and shuffling happens too far away to reach you, and no comfort layer beats simple distance.
- Motion isolation on top of the space: The 700 Cortec™ Quad springs respond to each sleeper individually, so what little movement does travel across 180cm of width is softened further.
- Room for the whole household: When children wander in at 3am, or a large dog treats the bed as its own, a UK super king means adults still get a fair share.
- Breathable at scale: British wool, hemp and flax fillings keep airflow moving across the full 6ft x 6ft 6in surface, useful when three bodies share it.
- Fills a large master properly: In a period property or generous new build main bedroom, a UK king can look undersized; this footprint suits the space.
This size suits you if...
You share the bed every night with a partner who moves around, and 90cm each sounds like the difference between broken and unbroken sleep. Or your household routinely ends up in one bed, children, pets or both, and you want a softer natural-filled surface with space to absorb the invasion. Your bedroom is comfortably over 3m x 2.9m, ideally nearer 3.5m x 3.2m.
Consider another size if...
Your room is under the 3m x 2.9m we suggest as a minimum, or the bed would dominate it. We'd recommend the UK king instead: it's 30cm narrower, the same length, and we suggest at least 2.7m x 2.9m for it.
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FAQ's
What room size do I need for a super king Emerald 16500?
We suggest at least 3m x 2.9m, with around 3.5m x 3.2m feeling more comfortable once you add wardrobes and bedside tables on both sides. This is our own guidance rather than the manufacturer's. If your room falls short, the UK king is 30cm narrower and we suggest at least 2.7m x 2.9m for it.
Is the super king Emerald 16500 hard to get upstairs?
At 180 x 200cm and 29cm deep it's a genuinely awkward carry, and pocket spring mattresses can't be rolled or folded like foam. Measure your stairwell, landing turns and door swings before ordering. Some retailers offer zip and link options at this width for exactly this reason, so ask about that if access is tight.
How much space does each person get on a super king Emerald 16500?
90cm each for two people sharing, which matches the full width of a UK single. In practice that means a restless partner can turn, stretch and steal the duvet at a distance the mattress's individually responding springs soften even further. It's the main reason to pick this size over the UK king, which gives 30cm less between you.
Is the Emerald 16500 super king good for co-sleeping with children?
It's one of the better setups for it. The 180cm width leaves adults a reasonable share when a child climbs in, and the soft to medium feel with wool and cotton fillings gives a gently cushioned, breathable surface. Lighter children sit near the top of the fillings rather than sinking, so they're unlikely to disturb the springs beneath you.
Is a UK super king the biggest size the Emerald 16500 comes in?
Yes. The Emerald 16500 also comes in UK single, UK small double, UK double and UK king, but the UK super king is the largest, and 180cm is the widest size UK retailers stock as standard. Compare the retailers listed on this page for current availability, as stock changes.