Firmness
Firm
Type
Hybrid
Depth (cm)
25
Number of Layers
5
Trial Period (nights)
100
Warranty (years)
5
Price Range
£504 to £774
Best Sleeping Position(s)
Certifications
Assessed from Copper Fresh's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
The main draw here is temperature. A thin layer of pure copper sits near the surface, which is highly conductive, meaning it pulls excess heat away from your body rather than trapping it, and it brings naturally antimicrobial benefits too. Beneath that, 30mm of memory foam relieves pressure while 2000 pocket springs respond individually to your weight and movement, so you get contouring without the sunk-in, overheated feel foam-only mattresses can give. Foam encapsulated edge support means you can use the full width of the bed without feeling like you'll roll off. It's a firm mattress, so it suits back and front sleepers and heavier bodies best. The 100-night trial gives you time to be sure.
Key Features & what's inside
- Knitted cover. A soft knitted finish that adds a little cosiness and warmth. It also enhances airflow and breathability, which helps you sleep cooler.
- Copper layer. A thin layer of pure copper that is highly conductive, drawing excess heat away from your body as you sleep. Copper is also naturally antimicrobial, a reassuring bonus for allergy-conscious sleepers.
- Memory Foam. 30mm of memory foam that cradles your body shape, which means pressure points like hips and shoulders get some relief. It's a modest layer, in keeping with the firm feel.
- Reflex Foam. Layers of reflex foam that add support and protect the spring system beneath. This section also includes foam encapsulated edge support, so the sides stay stable when you sit or sleep near the edge.
- Pocket Springs. A core of 2000 pocket springs, each encased in its own fabric pocket. They respond individually to weight and movement, which means responsive support and less disturbance from a restless partner.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
This is a firm mattress, so lightweight side sleepers may find it doesn't give enough at the shoulder and hip, which can leave you feeling perched on top rather than cradled. If you prefer a plush, sink-in feel, look at a softer model instead. At 25cm deep, it's also not the tallest hybrid around.
Copper Fresh Envy Supreme Mattress
Is the Copper Fresh Envy Supreme mattress firm or soft?
It's rated firm. That makes it a good match for back and front sleepers and those who like a supportive, on-top feel. Lighter side sleepers may find it a little too firm at the shoulder and hip, so it's worth using the trial period to be sure it suits you.
Does the Copper Fresh Envy Supreme come with a trial and guarantee?
Yes. It comes with a 100-night trial, so you can sleep on it at home before committing, plus a 5 year guarantee covering manufacturing faults. That trial matters more than usual here, because a firm mattress divides opinion and you can't judge the feel from a few minutes in a showroom.
Is the Copper Fresh Envy Supreme good for hot sleepers?
It's designed with hot sleepers in mind. A layer of pure copper conducts excess heat away from your body, and the knitted cover is built to enhance airflow and breathability. Memory foam has a reputation for sleeping warm, but the copper layer and the airflow through the 2000 pocket springs are there to counter that.
How deep is the Copper Fresh Envy Supreme mattress?
The specification lists it at 25cm deep. That's a fairly standard depth for a hybrid, so most fitted sheets will work fine, though it's shallower than some premium hybrids if you're after a particularly tall, hotel-style bed.
What sizes does the Copper Fresh Envy Supreme come in?
Five UK sizes: Single, Small Double, Double, King and Super King. Prices range from £504 to £774 depending on the size you choose.
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