Firmness
Firm
Type
Pocket Spring
Depth (cm)
Number of Layers
Trial Period (nights)
Warranty (years)
Price Range
£849 to £1,629
Best Sleeping Position(s)
Certifications
Assessed from the product page published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
Choose this version if you specifically want a firmer feel: this listing is the Firmer Feel variant of the Silver 6500, suited to people who find softer mattresses leave them sinking too far. The pocket spring construction means each spring compresses on its own, so heavier areas like hips get deeper support while lighter areas are still held. Availability across five sizes, including Small Double and Super King, makes it easier to match an existing bed frame. At £849 to £1,629 it sits at the pricier end of the market, but Harrison Spinks is a long-established British maker and the retailer-listed 5 Year Guarantee adds some reassurance.
Key Features & what's inside
Awaiting up to date specifications. Please check back later.
Who's it NOT for?
A firm mattress is rarely the right call for lightweight side sleepers, who may feel pressure at the shoulder and hip rather than sinking in comfortably. If you prefer a softer, more cradling surface, or the hug of memory foam, this pocket spring model probably is not for you. Budget buyers may also find the £849.00 starting price a stretch.
Harrison Spinks Silver 6500 Pocket Mattress (Firmer Feel)
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Is the Harrison Spinks Silver 6500 firm?
This listing is the Firmer Feel variant, catalogued as Firm. The retailer's page also mentions soft to medium and medium options of the Silver 6500, so check carefully which version you are ordering, as the listing does not always make the variant obvious.
What sizes does the Harrison Spinks Silver 6500 come in?
It is available in five UK sizes: Single, Small Double, Double, King and Super King. Prices run from £849.00 up to £1,629 depending on the size you choose.
Does the Harrison Spinks Silver 6500 have a guarantee?
The retailer listing shows a 5 Year Guarantee. That figure comes from the stockist rather than a manufacturer page, so it is sensible to confirm the guarantee terms with the retailer before you buy.
Is the Silver 6500 a pocket spring mattress?
Yes. It uses pocket springs, where each spring sits in its own fabric pocket and compresses independently. In practice that means better motion isolation for couples and support that adapts to your body shape rather than moving as one unit.
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