Flaxby Platinum Eclipse Mattress

Assessed from Flaxby's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.

Choose the Platinum Eclipse if natural materials matter to you. Every filling here is a natural fibre, from responsibly sourced British wool to cashmere and alpaca, which means a breathable sleep surface that handles temperature swings better than synthetic foams tend to. The hemp and flax layers are there specifically to regulate heat, useful if you sleep warm. Underneath, 13,440 handsewn calico pocket springs plus two layers of high density micro springs give firm, contouring support that responds to your shape rather than just pushing back. It's firm, so lightweight side sleepers may find it a little unforgiving. But for back and front sleepers who like solid support with a natural feel, it makes a strong case, provided the budget allows.

Back sleepers
The firm pocket spring core and two layers of micro springs give solid, contouring support that follows your shape while keeping the spine well supported.

Front sleepers
Firm support from over 13,000 handsewn pocket springs helps stop the hips sinking too far, which suits sleeping face down.

Warm sleepers
Hemp and flax layers regulate temperature, while the wool, silk and cashmere fillings breathe and wick moisture, so the surface stays cooler through the night.

Couples
Each handsewn calico pocket spring moves independently, which means less disturbance when a partner shifts position during the night.

Eco-conscious buyers
Every filling is a natural fibre, including responsibly sourced British wool, and the mattress is free from FR chemicals and glue, with no foam at all.

This is a firm mattress, so lightweight side sleepers may find it too unyielding around the shoulders and hips. Anyone who prefers the cradling, sink-in feel of memory foam should look elsewhere, as there's no foam here at all. And at its starting price, it's simply out of reach for many budgets.

Is the Flaxby Platinum Eclipse mattress firm or soft?

Flaxby describes it as firm. The 13,440 calico pocket springs and two layers of high density micro springs provide contouring support, while natural fillings such as wool, cashmere and alpaca soften the surface. Back and front sleepers are the most likely match; lightweight side sleepers may find it a little too firm.

How much does the Flaxby Platinum Eclipse cost?

It depends on the size you choose, and the price table on this page shows the current price for each size. It comes in UK Single, Small Double, Double, King and Super King. It's a significant outlay, but the spring count, 35cm depth and all-natural fillings help explain where the money goes. Delivery is free on all orders.

What is the Flaxby Platinum Eclipse made of?

Entirely natural fillings: wool, cotton, mohair, silk, cashmere and alpaca in the comfort layers, plus hemp and flax for temperature regulation. Support comes from 13,440 handsewn calico pocket springs and high density micro springs. It's free from FR chemicals and glue, and the British wool is responsibly sourced.

Does the Flaxby Platinum Eclipse have a guarantee?

Yes, it comes with a 10-year guarantee, along with free delivery on all orders. That's a reasonable span of cover for a mattress at a premium starting price, though as always it's worth reading the guarantee terms before you buy.

Is the Flaxby Platinum Eclipse good for hot sleepers?

It should suit hot sleepers well. It includes dedicated temperature-regulating layers of hemp and flax, and the other fillings, including wool, cotton and silk, are all breathable natural fibres. There's no foam to trap heat, which means the surface stays closer to a comfortable temperature overnight.