Harrison Spinks Silver 6500 Pocket Mattress (Medium Feel)
Mattress
Harrison Spinks Silver 6500 Pocket Mattress (Medium Feel)
Size
Firmness
Medium
Construction
Depth (cm)
29
Layers
7
Layer Details
- Cover. Woven in-house and free from fire retardant chemicals, meeting fire safety standards naturally. That means fewer chemical treatments next to your skin.
- Wool comfort layer. Layers of British wool give a soft yet springy surface feel. Wool insulates in winter and breathes in summer, which helps regulate temperature year round.
- British wool, hemp and flax blend. A further comfort layer that increases breathability. The blend is designed to reduce any build-up of mildew and mould.
- Cotton, hemp and flax blend. This layer wicks moisture away and adds more airflow. Useful if you tend to sleep warm or share the bed.
- Ecotex layer. Made from recycled fibres, this layer strengthens the mattress. It also keeps material out of landfill, a small but genuine sustainability point.
- Micro springs. 4,500 mini springs sit above the main unit for targeted, contoured comfort. Their small size means more contact points with your body, so pressure is spread more evenly.
- Pocket springs. The Cortec Quad Revolution system uses 1,000 springs, each with a smaller spring inside, secured in groups of four. Pocketing lets each spring move independently, which means less disturbance when a partner shifts.
Layer details from mattressonline.co.uk product page, September 2026.
- Natural materials for growing sleepers: The wool and cotton comfort layers breathe and wick moisture, which means a child or teen who runs warm at night is less likely to overheat.
- Room left over: At 90cm wide, this size leaves floor space for a desk, wardrobe or toy storage in bedrooms where the bed can't have the room to itself.
- Full spring count in a small footprint: The Cortec pocket springs and micro springs contour to one body without a partner to disturb, so a lighter solo sleeper gets the full benefit of the softer surface.
- Guest room friendly: Two UK singles fit where one larger bed dominates, useful for a spare room hosting visiting family or a study that doubles as guest space.
- Chemical-free cover: The cover meets fire safety standards without FR chemicals, a reassurance many parents look for when buying a mattress for a child.
This size suits you if...
You're buying for a child or teenager and want natural materials rather than foam next to their skin, you sleep alone in a compact room where 90cm of width is the practical limit, or you're kitting out a guest room where two single beds make more sense than one larger one.
Consider another size if...
You're an adult who sleeps alone but wants space to stretch out, and your room allows it. The UK small double is 30cm wider at the same length; allow at least 2.4m x 2.8m for it.
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Will the Harrison Spinks Silver 6500 UK single fit a bunk or mid sleeper frame?
Check your frame's stated maximum first. This mattress is 29cm deep, which is on the taller side, and raised frames often specify a shallower limit so the guard rail still sits above the mattress surface. It fits the 90 x 190cm platform of a standard UK bunk, but the depth is the thing to verify.
Is the Silver 6500 in a UK single a good choice for a child?
In feel, yes: the retailer describes it as soft to medium, which suits lighter bodies, and the wool and cotton layers breathe well. The cover also meets fire safety standards without chemical treatments. It is a serious spend for a child's room, though, so it makes most sense if you want it to last through the teenage years.
What room size do I need for this mattress in a UK single?
We suggest at least 2.1m x 2.8m of floor space. That leaves enough clearance to walk round the bed and open drawers or a wardrobe. In a child's room competing with storage and a desk, or under the slope of a loft conversion, the 90cm width is what keeps the layout workable.
What bedding do I need for the UK single Silver 6500?
Standard UK single fitted sheets are made for the 90 x 190cm footprint, and a single duvet at 135 x 200cm fits. Given the mattress is 29cm deep, look for fitted sheets with a generous corner depth, sometimes sold as deep fitted, so the elastic tucks fully under rather than pinging off overnight.
Can an adult sleep comfortably on the UK single?
A lighter adult who sleeps alone will find the soft to medium surface contours nicely, and at 6ft 3in long it accommodates most heights. If you're broader or tend to move around a lot, 90cm of width feels restrictive night after night, and the UK small double, 30cm wider at the same length, would suit you better.