Firmness
Medium
Type
Pocket Spring
Depth (cm)
24
Number of Layers
5
Trial Period (nights)
100
Warranty (years)
5
Price Range
£599 to £1,049
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
This one suits sleepers who want springs and natural fillings rather than memory foam. The 750 Cortec Quad springs at the core, each pocket holding four springs fused into one, give a responsive feel, so turning over takes less effort than on foam that hugs you in place. Above them sit 2,000 MicroHD springs, a layer of smaller springs that adds a gentler, more contouring surface. Wool, hemp and flax fillings breathe well, which matters if you sleep warm. The medium feel should suit most back and side sleepers, although those who like a firmer, more supportive edge to their mattress may want to look elsewhere. Mattress Online lists a 100-night trial and a 5-year guarantee.
Key Features & what's inside
- Cover. A cover of wool and natural viscose, fibres that are soft to the touch and naturally fire retardant. That means no chemical fire-retardant treatments are needed to meet safety standards.
- Comfort fillings. Multiple layers of wool, hemp and flax sit beneath the cover, which means a cosy surface feel that also breathes well. Natural fibres like these tend to sleep cooler than synthetic foams.
- MicroHD springs. A layer of 2,000 MicroHD springs sits above the core spring unit. These smaller springs add responsiveness and a more contouring feel at the surface.
- Support layer. Two layers of Ecotex fibres, made from recycled materials, support the spring system. A small sustainability point, and it gives the springs a stable base to work from.
- Core springs. The core holds 750 Cortec Quad springs, a design where four springs are fused into a single pocket. In practice that means increased responsiveness, so the mattress reacts quickly as you shift position.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
If you like the slow, cradling sink of memory foam, this all-spring design will feel too lively. Those who want a firm mattress should look elsewhere too, as this is a medium feel. And at a starting price of £599, budget shoppers may find it a stretch, one that reflects the natural fillings.
Harrison Spinks The Classic 2750 Pocket Mattress (Medium Feel)
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How firm is the Harrison Spinks Classic 2750 mattress?
It has a medium feel firmness rating. That places it in comfortable middle ground for most back and side sleepers, although lighter sleepers may find it a touch firmer than expected and heavier stomach sleepers may prefer something firmer still.
How many springs does the Classic 2750 have?
There are 2,750 springs in total: 750 Cortec Quad springs at the core, where four springs are fused into one pocket, plus 2,000 MicroHD springs layered above them for a more responsive, contouring surface.
Does the Harrison Spinks Classic 2750 come with a trial?
Mattress Online lists a 100-night trial and a 5-year guarantee with this mattress. These are the retailer's own terms, so if you buy elsewhere, check that seller's trial and returns policy before ordering.
What is the Classic 2750 mattress made of?
The fillings are wool, hemp and flax under a wool and natural viscose cover, with two layers of Ecotex fibres made from recycled materials supporting the springs. There is no memory foam, which means a breathable, more traditional feel.
What sizes does the Classic 2750 come in?
It's available in UK Single, Small Double, Double, King and Super King, priced from £599 to £1,049 depending on the size you choose. The mattress is 24cm deep across all sizes.
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