Harrison Spinks Silver 6500 Pocket Mattress (Soft to Medium Feel)
Mattress
Harrison Spinks Silver 6500 Pocket Mattress (Soft to Medium Feel)
Size
Firmness
Medium Soft
Construction
Depth (cm)
29
Layers
7
Layer Details
- Cover. An in-house woven cover that's FR chemical-free, meeting fire safety standards naturally. That means fewer chemicals close to where you breathe all night.
- Wool comfort layer. Layers of British wool give a naturally soft yet springy feel. Wool insulates in winter and stays breathable in summer, so it works year round.
- British wool, hemp and flax blend. An additional comfort layer that increases breathability. It also helps reduce a build-up of mildew and mould over time.
- Cotton, hemp and flax blend. This layer wicks away moisture and adds further breathability. Useful if you tend to sleep warm or live somewhere damp.
- Ecotex layer. A sustainable layer made from recycled fibres that strengthens the mattress. It also keeps material out of landfill.
- Micro springs. 4500 mini springs provide targeted, contoured comfort. Their small size means more contact points with your body and better airflow through the mattress.
- Pocket springs. 1000 Cortec Quad Revolution springs, each with a smaller spring inside and secured in groups of four. They move independently, which means your partner's tossing shouldn't reach your side of the bed.
Layer details from mattressonline.co.uk product page, September 2026.
- Room to escape a restless partner: The 1000 pocket springs move independently, and with 90cm each for two people sharing, most movement simply happens too far away to notice.
- Space for the whole household: If children or a large dog treat your bed as theirs, 180cm of width means everyone keeps a workable share of the mattress.
- A gentle feel that stays personal: The 4500 micro springs contour to each sleeper individually, so a lighter partner sinks in at their own rate across their own 90cm.
- Natural fillings across a big surface: Wool, cotton, hemp and flax breathe well, which helps when three or four bodies share the bed and the heat builds.
- Fills a larger master properly: In a big period bedroom where a UK king can look undersized, the 6ft x 6ft 6in footprint sits in proportion with the room.
This size suits you if...
You share the bed every night and want the movement of a restless partner to stay firmly on their side, or your children and pets join you often enough that a UK king feels crowded. It also makes sense if you have a large master bedroom, ideally 3m x 2.9m or more, where a smaller bed would look lost against the wall.
Consider another size if...
Your bedroom falls short of the 3m x 2.9m we suggest as a minimum, or you sleep alone. The UK king would suit you better: it's 30cm narrower, the same length, and we suggest at least 2.7m x 2.9m for it.
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Is a super king too big for my bedroom?
For the Silver 6500 in a UK super king we suggest a room of at least 3m x 2.9m. That allows walking space on both sides and drawers that still open. Measure with the door swing and any wardrobes in mind; if the numbers are tight, the UK king needs at least 2.7m x 2.9m and is the same length.
How much space do two people get on the Silver 6500 super king?
90cm each for two people sharing, which is the full width of a UK single per person. On a soft to medium mattress like this, that distance does more than the springs alone: combined with the 1000 independent pocket springs, a partner turning over rarely registers on your side.
Is the super king better than the king if children come in at night?
Usually, yes. The UK super king is 30cm wider than the UK king, and that extra width is the difference between everyone keeping a share and one adult clinging to the edge. The soft to medium feel is forgiving for small bodies too, though a child near the edge will feel the gentler surface give slightly.
Will the Silver 6500 super king get up the stairs?
It's a 180 x 200cm pocket spring mattress with no foam, so it won't fold or roll: it goes up rigid. Measure your stairwell, any landing turns and the bedroom door before ordering. If access is genuinely tight, ask the retailer about delivery to the room before you commit.
Where can I buy the Silver 6500 in a super king?
Availability shifts, so the simplest route is the live comparison table on this page, where prices are updated as retailers change them. Because the UK super king sits at the top of the size range, it's the most expensive option, and bedding costs more too: you'll need super king sheets and a 260 x 220cm duvet.