Harrison Spinks Jade 10000 Pocket Single Mattress (Medium Feel)
The Harrison Spinks Jade 10000 is a handcrafted UK pocket spring mattress with 16,300 springs across three layers, topped with wool, cotton, hemp and flax fillings.
- Natural fillings for hot sleepers
- Pressure relief without sinking in
- Handcrafted in the UK
£1,049
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Harrison Spinks Jade 10000 Pocket Mattress (Medium Feel)
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Mattress details
Mattress
Harrison Spinks Jade 10000 Pocket Mattress (Medium Feel)
Size
Firmness
Medium
Construction
Pocket Spring
Wool
Natural
Depth (cm)
29
Layers
4
Layer Details
Comfort fillings
A blend of wool, cotton, hemp and flax fibre layers sits at the top. The wool cushions around you for a plush feel, and its natural insulating and breathable properties help regulate temperature through the night.
Mini Pocket Springs
8,000 mini pocket springs mould around your unique body shape for enhanced comfort. Their small size also creates pockets of airflow, which means less heat build up than a solid comfort layer.
Posturfil Springs
1,300 Posturfil springs with a flexible design sit beneath. Their mini size helps them conform more closely to your shape, offering more points of contact and, in practice, more even pressure relief.
Cortec Quad Springs
The base layer uses 7,000 award-winning Cortec Quad springs, grouped in fours within fabric pockets and made without glue for flexibility. They respond to your weight and movements, giving your back extra support.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Fits compact rooms: At 90cm wide it slots into box rooms, loft conversions and spare rooms where anything larger would swallow the floor space, and we suggest allowing at least 2.1m x 2.8m.
- Natural fillings for warm sleepers: Wool, hemp and flax breathe well, which matters in a small or loft room where warm air tends to gather around the bed.
- A long-term buy for a teenager: The soft to medium feel cushions lighter bodies gently, and the spec is high enough to carry a teen well into adulthood.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm duvet fit, and single bedding is the cheapest and most widely stocked of any UK size.
- Guest room ready: In a spare room that doubles as an office, the UK single leaves space for a desk while still giving visitors a properly comfortable night.
This size suits you if...
You sleep alone and want a premium natural mattress without giving over the whole room to the bed, you're kitting out a spare room or study that guests use a few nights a month, or you're buying a bed for a teenager and would rather spend once on something that lasts than replace a cheaper mattress in five years.
Consider another size if...
You share the bed, or you're a solo adult who spreads out at night. We'd recommend the UK double instead: it's 45cm wider at the same length, and we suggest allowing at least 2.6m x 2.8m for it.
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FAQ's
Will the Harrison Spinks Jade 10000 UK single fit a bunk or mid sleeper frame?
The width and length match standard UK single frames, but the depth is the thing to check. This mattress is 29cm deep, which is tall for a raised frame: on a bunk it may sit above the safety rail, and on a cabin or mid sleeper it can leave too little headroom. Measure your frame's maximum mattress depth before buying.
What size room do I need for a UK single Jade 10000?
We suggest allowing at least 2.1m x 2.8m of floor space. That gives you room to walk around the bed and open drawers or a wardrobe. In a child's room competing with toy storage and a desk, or under the slope of a loft conversion, the 90cm width is what makes the layout work.
Is the UK single Jade 10000 big enough for an adult?
For one adult, yes, provided you sleep fairly still. At 90 x 190cm it's the standard UK one-person size, and the same length as the UK double. Taller adults over about 6ft may prefer the UK king's 200cm length, and anyone who spreads out will feel the 90cm width quickly.
Should I choose the UK single or the UK double for a spare room?
If the room doubles as an office, the UK single usually wins: the UK double is 45cm wider, and that width often costs you the desk. We suggest at least 2.6m x 2.8m for the UK double, against 2.1m x 2.8m for the UK single. Couples visiting regularly is the case for sizing up.
Is the Jade 10000 UK single a good mattress for a teenager?
It suits a teen well. The soft to medium feel gives lighter bodies a cushioned surface rather than a hard platform, and the breathable wool and flax fillings help warm sleepers. It's a real spend for a child's room, but the build quality means it can be a once-a-decade purchase rather than a stopgap.