Firmness
Type
Pocket Spring
Depth (cm)
24
Number of Layers
3
Trial Period (nights)
100
Warranty (years)
5
Price Range
£394 to £768
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.
If you want natural materials without a natural-materials price tag, this is where this mattress makes its case. The wool and viscose cover is naturally fire retardant with zero chemical treatments, and the 750 pocket springs are ultrasonically welded rather than glued, so the whole construction is cleaner than most at this price. The medium firmness suits most sleepers, although those who prefer a very firm surface should look elsewhere. Buying through Mattress Online, you get a 100-night trial, though it requires purchasing a mattress protector from them and allows an exchange after 30 nights. A 5-year guarantee is listed by the retailer, shorter than some brands offer, but honest cover for the price.
Key Features & what's inside
- Cover. A FabriSafe cover made from wool yarn and viscose fabric, which is naturally fire retardant with zero chemical treatments. That means it meets safety standards without sprayed-on chemicals near your skin.
- Comfort Layer. Traceable British wool paired with recycled polyester fibres for cushioning. Wool helps regulate temperature, so it works across warmer and cooler nights.
- Support System. 750 Cortec Quad steel pocket springs, each in its own fabric pocket, welded together ultrasonically and completely glue-free. Individual pockets mean the springs respond to your shape rather than moving as one block.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
This isn't the mattress for you if you need a very firm or very soft feel: the medium tension aims at the middle ground. There's no memory foam layer either, so if you like that slow, cradling sink, a hybrid or foam mattress would suit you better. Heavier sleepers may want a higher spring count.
Harrison Spinks Luxury Essential 750 Pocket Mattress
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How firm is the Harrison Spinks Luxury Essential 750?
It's a medium firmness, which suits most sleeping positions. Side sleepers should get enough give at the shoulder and hip, and back sleepers reasonable support, although anyone who prefers a distinctly firm surface may find it a little soft.
Does the Harrison Spinks Luxury Essential 750 come with a trial?
Mattress Online lists a 100-night trial. It requires buying a mattress protector from them, and you can exchange the mattress after 30 nights if you're not satisfied. These are the retailer's own terms, so check before you buy elsewhere.
What is the Harrison Spinks Luxury Essential 750 made of?
The cover is FabriSafe wool yarn and viscose, naturally fire retardant with no chemical treatments. Beneath that sits traceable British wool with recycled polyester fibres, then 750 Cortec Quad steel pocket springs, welded rather than glued. The mattress is 24cm deep.
What guarantee does the Harrison Spinks Luxury Essential 750 have?
Mattress Online lists a 5-year guarantee. That's shorter than some brands offer, but it's honest cover for a mattress starting at £394.
What sizes does the Harrison Spinks Luxury Essential 750 come in?
It's available in UK Single, Double, King and Super King, priced from £394 to £768 depending on size.
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