Harrison Spinks Jade 10000 Pocket Mattress (Medium Feel)
Mattress
Harrison Spinks Jade 10000 Pocket Mattress (Medium Feel)
Size
Firmness
Medium
Construction
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.
- 90cm each for two sleepers: Two people sharing get 90cm each, which means a partner who turns often through the night becomes far easier to ignore.
- 16,300 springs across a 6ft width: The three spring layers respond to each sleeper individually, so one side compressing under a heavier partner barely registers on the other side of a 180cm bed.
- Room for night-time visitors: If children or a large dog regularly end up in your bed, the 6ft x 6ft 6in footprint means everyone keeps a workable share of the mattress.
- Natural fillings across a bigger surface: Wool, cotton, hemp and flax breathe well, and across a UK super king two warm sleepers are far less likely to share each other's heat.
- Fills a larger master properly: In a period property or generous new build master, a UK king can look undersized; the UK super king suits the room as well as the sleepers.
This size suits you if...
You share the bed every night and want the most space any standard UK size offers, your children or pets treat your bed as their own in the small hours, or your partner is genuinely restless and you've decided distance solves what no comfort layer can. Your bedroom should offer at least 3m x 2.9m, and ideally more, so the bed doesn't dominate the room.
Consider another size if...
Your bedroom falls short of our suggested 3m x 2.9m minimum, or you sleep alone and the width would go unused. We'd recommend the UK king instead: it's 30cm narrower, the same length, and we suggest at least 2.7m x 2.9m for it.
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Is the Jade 10000 super king too big for my bedroom?
It measures 180 x 200cm, and we suggest a room of at least 3m x 2.9m so you can walk round the bed and open drawers comfortably. If your room is tighter than that, the UK king is 30cm narrower at the same length, and we suggest at least 2.7m x 2.9m for that size.
How much space does each person get on a super king Jade 10000?
Two people sharing get 90cm each. Combined with the 16,300 individually pocketed springs, which absorb movement rather than transferring it across the bed, that width means a partner who shifts position frequently is unlikely to wake you.
Will the Jade 10000 super king get up my stairs?
At 6ft x 6ft 6in and 29cm deep, this is a large, heavy pocket spring mattress that doesn't fold or roll. Measure your stairwell, landing turns and door swings before ordering, and check the retailer's access requirements. If access is genuinely tight, the UK king is 30cm narrower and slightly easier to manoeuvre.
Is the super king a good choice if children climb in at night?
It's the size we'd point to for that situation. A UK super king is 45cm wider than a UK double, so a small visitor at 3am doesn't push either adult to the edge. The pocket springs also keep a wriggling child's movement fairly contained to their patch of the bed.
Is the Jade 10000 in a super king suitable for solo sleepers?
You can, and some solo sleepers with large rooms love the space, but for most people it's more mattress and more bedroom than needed. We'd suggest the UK double, which is 45cm narrower and 10cm shorter, and needs a room of at least 2.6m x 2.8m.