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.
- Fits where other beds won't: At 90cm wide it leaves room for a desk, wardrobe and toy storage in a child's bedroom, or slips under the slope of a loft conversion.
- Natural fillings for growing sleepers: British wool, cotton, hemp and flax breathe well and contain no foam, a reassuring choice for a child's or teenager's bed.
- A gentle feel at a light body weight: The soft to medium tension responds more readily to lighter sleepers, so children and slimmer adults get contouring rather than a surface that barely gives.
- Guest-room friendly: In a spare room that doubles as an office, a single keeps the desk usable while still giving visitors a genuinely comfortable pocket spring bed.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked and affordable bedding of any UK size.
This size suits you if...
You're buying for a child or teenager and want natural materials rather than foam close to where they breathe, you sleep alone and prefer a gentler, softer surface, or you're furnishing a compact spare room or loft conversion where a 90cm footprint is the only one that works.
Consider another size if...
You share the bed regularly, or you're a broad-shouldered adult who finds 90cm restricts how you turn. We'd recommend the UK double instead: it's 45cm wider and the same length, and we suggest at least 2.6m x 2.8m of floor space for it.
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What size is the Harrison Spinks Silver 6500 UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in. That's the standard UK one-person size, so it fits any standard single bed frame. We suggest allowing at least 2.1m x 2.8m of floor space so you can still open drawers and walk around the bed comfortably.
Is the UK single Silver 6500 suitable for a bunk or mid sleeper frame?
The footprint is right, since bunks take standard 90 x 190cm singles, but this mattress is 29cm deep, which is taller than many raised frames allow. Check your frame's maximum mattress depth and the safety rail height before buying; a mattress that sits too high leaves the guard rail doing very little.
Is the Silver 6500 single a good choice for a child's room?
It suits that room well. The 90cm width leaves floor space for a desk, wardrobe and storage, and the fillings are natural wool, cotton, hemp and flax with no foam. The cover meets fire safety standards without FR chemicals too. The soft to medium feel works nicely for lighter, growing sleepers.
How much smaller is the UK single than the UK king?
The UK single is 60cm narrower and 10cm shorter than the UK king. That gap matters for taller teenagers: at 190cm long, a single starts to feel short for anyone approaching six feet. If the room allows, the UK king needs at least 2.7m x 2.9m of floor space by our guidance.
Will the single work in a spare room used as an office?
Yes, and it's arguably the best size for that job. A single leaves the desk and chair usable day to day while giving guests a proper pocket spring mattress rather than a sofa bed. Single bedding is cheap and easy to store between visits, which helps when the room's main job isn't sleeping.