Harrison Spinks Quilted Fusion 8000 Pocket Mattress

Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.

This mattress is built almost entirely around springs rather than foam, which means a responsive, breathable feel with a bit of bounce. The 1,000 Advanced Cortec Quad pocket springs work independently, so you get support tailored to where you actually put weight, and the mini spring layers above add cushioning without trapping heat. If you're a hot sleeper, that all-spring construction and knitted cover should feel noticeably airier than memory foam. The medium feel suits most sleepers, although anyone wanting a properly firm surface may find it a little forgiving. It uses a natural fire retardant formula, conforms to BS7177: 2008 and is 100% recyclable, a rare tick for anyone thinking about end-of-life disposal.

Warm sleepers
The all-spring build and knitted cover are designed to move heat and moisture away from your body, so it should feel airier than memory foam.

Combination sleepers
Springs that bounce back and a responsive feel mean it should be easy to shift position during the night without feeling stuck in the surface.

Couples
The 1,000 Advanced Cortec Quad pocket springs are each encased in their own pocket and move independently, so support is tailored to where each person puts weight.

Eco-conscious buyers
It uses a natural fire retardant formula and is 100% recyclable, which gives you a clear route for disposing of it responsibly at the end of its life.

Back sleepers
A medium firm feel with layered pocket springs gives support that adjusts to your shape rather than a single flat push-back, helping you stay comfortably level.

If you want a flip-able, double-sided mattress, this isn't one: the listing states it's single-sided and should be rotated every six months instead. It's only available in a UK Double, so it won't suit anyone needing another size. And if you prefer the slow, sinking hug of memory foam, this springy, responsive feel may disappoint.

Is the Harrison Spinks Quilted Fusion 8000 firm or medium?

The retailer product page describes the feel as medium, which means a balanced surface that suits most sleeping positions. Yes, that's softer than some retailer listings suggest, but the 8,500-spring construction still provides plenty of underlying support. If you're a very heavy sleeper or you prefer sleeping on a firm mattress, you may want something with more resistance.

How many springs does the Quilted Fusion 8000 have?

It contains 8,500 springs across four layers: 1,000 Advanced Cortec Quad pocket springs, 4,000 and 2,500 HD mini springs, and 1,000 Posturfil mini springs. The 8000 in the name is branding rather than a spring count.

Does the Harrison Spinks Quilted Fusion 8000 come with a trial?

Mattress Online lists a 100-night trial and a 5-year guarantee. These are the retailer's own terms rather than a manufacturer promise, so check them at checkout before you buy.

Can you flip the Quilted Fusion 8000 mattress?

No. The listing states it's single-sided, so it shouldn't be flipped. Instead, rotate it end to end every six months to help the fillings settle evenly and extend its life.

How deep is the Harrison Spinks Quilted Fusion 8000?

It's 25cm deep, which means standard deep fitted sheets should fit without a struggle. That depth houses four spring layers plus soft fibre fillings beneath the quilted knitted cover.