Harrison Spinks Silver 6500 Pocket Mattress (Soft to Medium Feel)
Mattress
Harrison Spinks Silver 6500 Pocket Mattress (Soft to Medium Feel)
Size
Firmness
Medium Soft
Construction
Depth (cm)
29
Layers
7
Layer Details
- Cover. An in-house woven cover that's FR chemical-free, meeting fire safety standards naturally. That means fewer chemicals close to where you breathe all night.
- Wool comfort layer. Layers of British wool give a naturally soft yet springy feel. Wool insulates in winter and stays breathable in summer, so it works year round.
- British wool, hemp and flax blend. An additional comfort layer that increases breathability. It also helps reduce a build-up of mildew and mould over time.
- Cotton, hemp and flax blend. This layer wicks away moisture and adds further breathability. Useful if you tend to sleep warm or live somewhere damp.
- Ecotex layer. A sustainable layer made from recycled fibres that strengthens the mattress. It also keeps material out of landfill.
- Micro springs. 4500 mini springs provide targeted, contoured comfort. Their small size means more contact points with your body and better airflow through the mattress.
- Pocket springs. 1000 Cortec Quad Revolution springs, each with a smaller spring inside and secured in groups of four. They move independently, which means your partner's tossing shouldn't reach your side of the bed.
Layer details from mattressonline.co.uk product page, September 2026.
- A shared size that fits real rooms: At 135 x 190cm the UK double leaves space for wardrobes and drawers in a typical bedroom, which a UK king often doesn't.
- Independent springs across a shared bed: The 1000 Cortec Quad Revolution pocket springs move independently, which means your partner shifting on their side shouldn't travel across to yours.
- Breathable when two of you share: Two sleepers generate more heat than one, and the wool, cotton, hemp and flax layers keep air moving where foam would trap it.
- Room for bedside tables on both sides: Allow at least 2.6m x 2.8m and most couples will still fit a table each side, which matters more than an extra few centimetres of mattress.
- Bedding is easy and cheap to find: Double sheets and duvets are stocked everywhere at every price, useful if you're furnishing a whole home and the budget is already stretched.
This size suits you if...
You share the bed every night and your bedroom is a typical UK size, where a bigger mattress would crowd out the wardrobe or lose you a bedside table. It also suits you if you're setting up a guest room for visiting couples, or you sleep alone but like room to spread out, perhaps with a dog or cat claiming one corner.
Consider another size if...
You and your partner both like space, and your room measures at least 2.7m x 2.9m. The UK double gives 67.5cm each for two people sharing, which some couples find snug; we'd recommend the UK king instead.
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Is the Harrison Spinks Silver 6500 double big enough for two people?
For most couples, yes. The UK double is 135 x 190cm, which works out at 67.5cm each for two people sharing. The pocket springs move independently, so one of you turning over shouldn't disturb the other. That said, if either of you is tall or a restless sleeper, the UK king is 15cm wider and 10cm longer.
What room size do I need for the Silver 6500 in a UK double?
We suggest allowing at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That leaves room to open drawers and walk around the bed, and in most rooms a bedside table on each side. If your room comfortably exceeds 2.7m x 2.9m, the UK king becomes a realistic option too.
Should I get the Silver 6500 in a double or a king?
It comes down to your room and how much space you each want. The UK double is 15cm narrower and 10cm shorter than the UK king, and suits bedrooms where a king would dominate. If you both spread out at night and your room allows at least 2.7m x 2.9m, size up to the UK king.
Is a double a good size for a guest room?
Yes, and this mattress suits one well. The UK double accommodates visiting couples at 4ft 6in x 6ft 3in, and the natural wool and cotton layers resist the musty feel a rarely used foam mattress can develop. The soft to medium feel is forgiving enough to suit a range of guests, though committed firm-mattress fans may notice the gentler surface.
Where can I buy the Silver 6500 in a UK double?
Stock moves around, so the most reliable answer is the live table on this page, which is updated as retailers change their prices and availability. Compare the retailers listed here rather than relying on a search, since not every stockist carries every size of this mattress at any given time.