Firmness
Type
Pocket Spring
Depth (cm)
30
Number of Layers
3
Trial Period (nights)
100
Warranty (years)
7
Price Range
£1,699 to £3,299
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Feather & Black, captured September 2026, and from regular price comparison across our UK retail partners.
You'd choose the Tennyson for the combination of a genuinely high spring count and natural fillings without foam-heavy layers. The 7,440 springs, including micro, Posturfil and Cortec pocket springs, give fine-grained support, which means less of that roll-together feeling if you share a bed. British wool comes with full traceability from farm to factory, and the flax and hemp fillings breathe well, so hot sleepers should stay more comfortable than on synthetic alternatives. Yes, it's a serious spend at £1,699 upwards, but you're paying for Harrison Spinks construction and a 30cm build. Feather & Black, the retailer that sells it, lists a 100-night comfort promise and a 7-year guarantee, so there's a safety net.
Key Features & what's inside
- Pillow top. A cloud-like pillow top with additional micro springs, which means a softer, cushioned surface sitting above the firm support below. It's sewn on rather than separate, so the comfort layer stays put.
- Natural fibres layer. Generous layers of British wool, naturally cooling flax and farm-grown hemp. These fibres wick moisture and regulate temperature, which should help if you tend to sleep warm.
- Pocket spring layers. 7,440 responsive springs in total, combining high-density micro, Posturfil and Cortec pocket springs. Each spring moves independently, so you get support where your body needs it and less motion transfer across the bed.
Layer details from featherandblack.com product page, September 2026.
Who's it NOT for?
This is a firm mattress, so lightweight side sleepers may find it doesn't cushion the shoulder and hip enough. It's also a significant outlay: if your budget sits well under £1,699, you'll find good pocket sprung options elsewhere. And at 30cm deep, check your fitted sheets will cope.
Harrison Spinks Tennyson Mattress
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How firm is the Harrison Spinks Tennyson mattress?
It's described as firm. The pillow top with micro springs softens the immediate surface feel, but the underlying support is firm, which suits back and front sleepers and heavier builds. Lightweight side sleepers may find it slightly too firm.
How many springs does the Harrison Spinks Tennyson have?
It contains 7,440 springs in total, made up of high-density micro springs, Posturfil pocket springs and Cortec pocket springs, plus additional micro springs in the pillow top. More springs generally means more precise contouring and less partner disturbance.
Does the Harrison Spinks Tennyson come with a trial or guarantee?
Feather & Black, the retailer that sells it, lists a 100-night comfort promise and a 7-year guarantee as its own offers. The mattress is made exclusively for Feather & Black, so those terms come from that retailer rather than from Harrison Spinks directly.
What sizes does the Harrison Spinks Tennyson come in?
Six sizes: UK single, small double, double, king, super king and emperor. Prices range from £1,699 to £3,299 depending on the size you choose. The mattress is 30cm deep across the range, so deep fitted sheets are a sensible buy.
What is the Harrison Spinks Tennyson made of?
The fillings are natural: British wool with full farm-to-factory traceability, flax and hemp, over layers of pocket springs. The cover is a wool and viscose blend. There's no memory foam, which means a more breathable, springier feel than foam-topped mattresses.
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