Harrison Spinks Jade 10000 Pocket Mattress (Soft to Medium Feel)
Mattress
Harrison Spinks Jade 10000 Pocket Mattress (Soft to Medium Feel)
Size
Firmness
Medium Soft
Construction
Pocket Spring
Wool
Natural
Depth (cm)
29
Layers
4
Layer Details
- Comfort fillings. British wool comfort layers sit at the top, which means natural insulation in winter and breathability in summer. Wool also handles moisture well, so the sleep surface should stay fresher for longer.
- Mini Pocket Springs. 1,300 Posturfil mini springs flex as you move, while 8,000 mini pocket springs mould around your body shape. In practice this feels like close, even contouring rather than a single firm push.
- Moisture wicking layer. A blend of soft cotton, hemp and flax fibres forms a breathable barrier against moisture build-up. If you're a hot or sweaty sleeper, this layer does quiet but useful work.
- Support system. 700 Cortec Quad springs form the base, grouped into fours and encased within a fabric pocket. This gives adaptable, responsive support across your whole body rather than just under the heaviest points.
Layer details from mattressonline.co.uk product page, September 2026.
- Fits compact rooms: At 90cm wide, it leaves floor space free in box rooms, loft conversions and spare rooms that double as an office; allow at least 2.1m x 2.8m.
- Full spring count in a single: You get the complete three-tier spring system in this size, so a lighter solo sleeper feels close contouring rather than a surface built for two.
- Soft to medium suits lighter bodies: Lighter adults and teens often sink too little into firmer mattresses; this version lets a smaller frame settle in and get proper contouring.
- Natural fillings for a warm sleeper: The wool, cotton, hemp and flax layers breathe well, useful in a small bedroom where heat has nowhere to go on summer nights.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm duvet fit, the most widely stocked and lowest-cost bedding of any UK size.
This size suits you if...
You sleep alone every night and want a genuinely comfortable mattress rather than a stopgap, you're buying for a teenager who has years of growing to do and deserves proper support, or you have a spare room or study that hosts guests regularly and only a 90cm-wide bed will fit alongside the desk and wardrobe.
Consider another size if...
You sleep alone but like to sprawl, or the bed may need to take two people. We'd recommend the UK double instead: it's 45cm wider than the UK single 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 Jade 10000 UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in. That's the standard UK single, so it fits any standard single bed frame and takes standard single fitted sheets with a 135 x 200cm duvet. We suggest a room of at least 2.1m x 2.8m so you can move around the bed comfortably.
Is the Jade 10000 UK single big enough for an adult?
For most solo adults, yes. At 90cm wide it gives one person room to turn without hanging over the edge, and at 190cm long it suits anyone up to around six feet comfortably. Taller sleepers should check the fit carefully, since length only increases at UK king and above, both of which are 10cm longer.
Is the soft to medium UK single a good choice for a child or teenager?
It can be, with a caveat. The soft to medium feel suits lighter bodies well, and the wool and natural fibre layers breathe nicely in a small bedroom. It is a premium mattress though, so it makes most sense for an older child or teenager who will use it for years, rather than a bed they'll soon outgrow.
Will the Jade 10000 UK single fit a bunk or mid sleeper frame?
The footprint fits: 90 x 190cm is the standard size those frames take. The concern is depth. At 29cm this is a tall mattress, and many bunk frames specify a maximum depth so the guard rail still sits safely above the surface. Check your frame's limit before buying; a slimmer mattress may be the safer pick for a top bunk.
Should I get the UK single or the UK small double in this mattress?
It depends on the sleeper and the room. The UK single is 30cm narrower than the UK small double, and the two are the same length. An adult who finds a single restrictive will appreciate that extra width, but you'll need more space: we suggest at least 2.4m x 2.8m for the UK small double, against 2.1m x 2.8m for the UK single.