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
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.
- The classic couples' footprint: At 135cm wide the UK double gives 67.5cm each for two people sharing, enough for most couples without the bed dominating the room.
- Room left for furniture: Allow at least 2.6m x 2.8m and a typical UK bedroom still fits bedside tables on both sides, which taller sizes often rule out.
- Contouring that suits sharing: 9,700 springs across three types mould to each sleeper separately, which means less disturbance when a partner shifts in the night.
- Wool where two bodies warm the bed: Two sleepers generate more heat than one, and the British wool and cotton, hemp and flax layers help the surface stay drier and cooler.
- Easy to dress: Standard double sheets and a 200 x 200cm duvet fit, stocked everywhere at every price, handy if this is going in a guest room.
This size suits you if...
You share the bed every night and your bedroom is a typical UK size, comfortable at around 3m x 3m but workable from our suggested 2.6m x 2.8m minimum. Or you're setting up a guest room that visiting couples will use, where a soft to medium feel suits a range of sleepers. It also fits if you sleep alone but want proper space to stretch out, perhaps with a dog or cat claiming a corner.
Consider another size if...
You and your partner both like space and your room can take something bigger. The UK king is 15cm wider and 10cm longer than the UK double, and we suggest allowing at least 2.7m x 2.9m for it.
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Is the Harrison Spinks Jade 10000 UK double big enough for a couple?
For most couples, yes. The UK double gives 67.5cm each for two people sharing, and the mattress's 9,700 springs contour to each sleeper individually, so one partner moving is less likely to wake the other. Broader couples, or restless sleepers who spread out, may find the UK king's extra width easier to live with.
What room size do I need for the Jade 10000 in a UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That allows walking space on both sides plus a wardrobe and drawers. If you want bedside tables on both sides in a smaller room, measure carefully first, as they are often the thing that gets squeezed out.
Should I buy the Jade 10000 in a UK double or a UK king?
The UK double is 15cm narrower and 10cm shorter than the UK king, so it suits rooms where a king would crowd the space. Sleepers over 6ft may appreciate the UK king's extra length. If your room offers at least 2.7m x 2.9m and you both value space, the UK king is the more generous choice.
Will a UK double Jade 10000 get up narrow stairs?
At 135cm wide it is generally the largest size that turns comfortably on the tight staircases found in older terraces and some new build landings. Pocket spring mattresses like this cannot be rolled or folded, so measure your stairwell, landing and door frames before ordering rather than after delivery arrives.
Does the Jade 10000 UK double work for a guest room?
It suits one well. A UK double fits most spare rooms without swallowing them, and the soft to medium feel is forgiving for visiting couples with different preferences. Standard double bedding, including a 200 x 200cm duvet, is cheap and widely stocked, which keeps dressing a rarely used bed simple.