Harrison Spinks Jade 10000 Pocket Small Double Mattress (Soft to Medium Feel)
The Harrison Spinks Jade 10000 is a pocket spring mattress with a soft to medium feel, handcrafted in the UK and finished with British wool comfort layers.
- Gentle, gradual contouring feel
- Less clammy if you run warm
- Supportive across your whole body
£1,399
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Harrison Spinks Jade 10000 Pocket Mattress (Soft to Medium Feel)
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Mattress details
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.
Key benefits
- Real room to stretch out alone: At 30cm wider than a UK single, it turns a bed you fit into a bed you can actually move around in.
- Slots into rooms a double crowds: It's 15cm narrower than a UK double, which can be the difference between a clear walkway and a squeeze past the footboard.
- Soft to medium contouring suits solo side sleepers: The 8,000 mini pocket springs mould closely around one body, so a lone sleeper gets even pressure relief across shoulders and hips.
- Wool layers earn their premium in small rooms: Compact bedrooms can run warm, and the breathable British wool and moisture-wicking cotton, hemp and flax layers help the surface stay fresh.
- Handles the occasional shared night: Two guests can share it comfortably for a weekend, making it a sensible pick for a spare room that hosts couples now and then.
This size suits you if...
You sleep alone and have outgrown a single but can't spare the floor space a double takes, you're furnishing a box room, studio or loft conversion where 15cm of width decides whether the layout works, or you're kitting out a guest room that hosts the occasional couple rather than anyone nightly. The soft to medium feel suits side sleepers and lighter builds best.
Consider another size if...
You share the bed every night, or nearly every night, and want space you'll both actually enjoy. We'd recommend the UK double instead; it's 15cm wider, the same length, and we suggest a room of at least 2.6m x 2.8m for it.
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FAQ's
What size is the Harrison Spinks Jade 10000 small double?
The UK small double measures 120 x 190cm, or 4ft x 6ft 3in. It's the same length as a UK single and a UK double, so it fits rooms of the same depth; the difference is purely in width. Standard small double frames and 4ft fitted sheets fit it without any hunting around.
What room size do I need for a small double Jade 10000?
We suggest a room of at least 2.4m x 2.8m. That allows space to walk down at least one side of the bed and open drawers or a wardrobe without shuffling sideways. In a loft conversion, also check where the ceiling slopes, since standing room beside the bed matters as much as floor area.
Is the Jade 10000 small double suitable for a couple every night?
For occasional shared nights, yes, which is why it works well in a guest room. As a nightly bed for two it's a tight fit, and the soft to medium feel means each sleeper will notice the other more on a narrower surface. Couples sharing full time would be happier on the UK double or UK king.
Does the Jade 10000 small double feel different from the larger sizes?
The construction is identical across sizes: the same soft to medium feel, wool comfort layers and 9,700 springs. What changes is how the space is used. With one sleeper on a 120cm width, the mini pocket springs contour around a single body with no compromise for a partner, so a solo sleeper gets the full benefit.
Where can I buy the Jade 10000 in a UK small double?
Availability varies by size, so the simplest route is to compare the retailers listed on this page. The prices shown here are updated as retailers change them. One check before ordering: this mattress also comes in medium and firm versions, so confirm the listing says soft to medium as well as UK small double.