Firmness
Medium Soft
Type
Hybrid
Depth (cm)
29
Number of Layers
6
Trial Period (nights)
200
Warranty (years)
20
Price Range
£849 to £1,299
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Furniture Village, captured September 2026, and from regular price comparison across our UK retail partners.
Choose this mattress if you sleep warm and want a softer-leaning hybrid. The graphite particles in the Diamond Cool foam layer conduct heat away from your body, which means you're less likely to wake up clammy in summer. Underneath, pocket springs distribute your weight evenly, so heavier areas like hips get support without the whole mattress dipping. Buying through Furniture Village, you get a 200-night trial listed, plus delivery in 7 days with a £39 Premium Delivery Service for mattresses, though do note those are Furniture Village's own terms rather than Emma's, so check whichever retailer you buy from. It comes in UK Single through to Super King.
Key Features & what's inside
- PolarLuxe™ ultra cooling cover. An ultra cooling cover that feels instantly cool and refreshing when you first lie down. It's the first line of defence for hot sleepers.
- Diamond Cool™ foam layer. Visco-elastic foam infused with graphite particles, which conduct excess heat away from your body. In practice, that means less of the heat build-up memory foam is known for.
- HRXComfort™ foam layer. A comfort foam that lets you snuggle in without sinking down. You get cushioning at the surface while staying reasonably easy to move around on.
- AeroFlex™ pocket springs. Individually pocketed springs that distribute your weight evenly, giving balanced support with pressure relief. They also add the responsiveness that all-foam mattresses can lack.
- HRXSupport™ foam layer. A precision-engineered base foam that Emma guarantees will keep its shape for 10 years. This is what stops the mattress sagging over time.
- Anti-slip bottom cover. A grippy underside that keeps the mattress in place on your bed frame all night. A small detail, but useful on slatted or divan bases.
Layer details from furniturevillage.co.uk product page, September 2026.
Who's it NOT for?
If you prefer a firm mattress, or you're a heavier sleeper who needs a more supportive surface, this Medium feel may let you settle in further than you'd like. It's also a higher-priced option, so budget shoppers or anyone happy with a simpler all-foam design could spend less elsewhere.
Emma Diamond Hybrid Deluxe Mattress
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Is the Emma Diamond Hybrid Deluxe good for hot sleepers?
It's built with heat in mind. The PolarLuxe cover feels instantly cooling, and the Diamond Cool foam layer uses graphite particles to move excess heat away from your body, which means you should feel noticeably less warm than on a standard memory foam mattress.
How firm is the Emma Diamond Hybrid Deluxe?
The Furniture Village listing describes it as Medium. That suits most sleeping positions, particularly side and combination sleepers, although fans of a very firm surface may find it a little too yielding.
Does the Emma Diamond Hybrid Deluxe come with a trial?
Furniture Village lists a 200-night trial with this mattress. That trial is the retailer's own offer rather than a guaranteed Emma term, so if you buy elsewhere, check that retailer's trial and returns policy before ordering.
How deep is the Emma Diamond Hybrid Deluxe mattress?
It's 29 cm deep, which is on the taller side. Six layers make up that height, from the cooling cover down to an anti-slip base, so it's worth checking your fitted sheets will stretch over it.
What sizes does the Emma Diamond Hybrid Deluxe come in?
It's available in UK Single, UK Double, UK King and UK Super King, with prices running from £849 to £1,299 depending on the size you choose.
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