Luna Memory 2500 Pocket Hybrid Mattress
The Luna Memory 2500 Pocket Hybrid pairs 2500 pocket springs with a 4cm layer of Luna Fusion Cool memory foam, which means you get contouring comfort without the trapped heat that standard memory foam can cause.
- Supportive feel for back sleepers
- Minimises partner disturbance
- Breathes better than memory foam
£345
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At 25cm deep with a medium to firm feel, the Luna Memory 2500 suits back and stomach sleepers who want structure rather than a deep sink. It comes in five UK sizes at a price that's good value for a hybrid with this spring count. Mattress Online lists a 10-year guarantee and a 100-night trial, though those terms are the retailer's own rather than a Luna promise.
Mattress specifications
Firmness
Medium Firm
Type
Hybrid
Depth (cm)
25
Number of Layers
4
Trial Period (nights)
100
Warranty (years)
10
Price Range
£345 to £790
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Combination Sleeping
Certifications
BS 7177
Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
Choose this one if you want a supportive hybrid at a sensible price. The 2500 individually pocketed springs adapt to your body and movement, which means less partner disturbance and support that follows your shape rather than pushing back as one unit. The Fusion Cool memory foam has an open cell structure, so it breathes better than traditional memory foam, a genuine plus if you tend to sleep warm. Reflex foam beneath reinforces the medium to firm feel and helps keep your spine aligned. It conforms to BS7177: 2008 fire safety standards for home use. The firmer feel takes some getting used to, but for most back sleepers that structure is exactly the point.
Key features & layer details
Knitted cover
A soft knitted cover that adds a touch of cosiness and warmth. Knitted covers also enhance airflow, so the surface stays breathable.
Luna Fusion Cool Memory Foam
A 4cm layer of memory foam with an open cell structure, which means it breathes better and feels cooler than standard memory foam. You get the contouring without as much of the heat.
Reflex Foam
Reflex foam in 2cm and 3cm layers adds cushioning and reinforces the medium to firm feel. It moulds to your body while promoting spinal alignment.
Luna Pocket Springs
A core of 2500 Luna pocket springs, each encased in its own cloth pocket. They respond individually to movement, which means personalised support and less disturbance when a partner shifts.
Layer details from mattressonline.co.uk product page, September 2026.
Best suited for?
Back sleepers
The medium to firm feel from the reflex foam layers gives structure and helps keep the spine aligned, rather than letting you sink in too deeply.
Front sleepers
Firmer support from the reflex foam and 2500 pocket springs keeps the middle of the body lifted, so you get structure rather than a deep sink.
Couples
Each of the 2500 pocket springs sits in its own cloth pocket and responds individually, which means less disturbance when your partner shifts position.
Warm sleepers
Fusion Cool memory foam has an open cell structure and the knitted cover aids airflow, so the surface breathes better and feels cooler than standard memory foam.
Budget buyers
The copy describes it as good value for a hybrid with this spring count, giving you 2500 pocket springs and four layers at a sensible price.
If you're a lightweight side sleeper or simply prefer a soft, sink-in feel, the medium to firm support here will likely feel too solid. Owner feedback suggests the firmness can take a short adjustment period, so this isn't the mattress for anyone wanting instant plushness from night one.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Luna Memory 2500 Pocket Hybrid Mattress
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FAQ's
How firm is the Luna Memory 2500 mattress?
It has a medium to firm feel, reinforced by reflex foam layers beneath the memory foam. That suits back and stomach sleepers well, although lightweight side sleepers may find it a little too firm. Some owners note a short adjustment period before it feels fully comfortable.
Does the Luna Memory 2500 sleep hot?
It's designed not to. The Luna Fusion Cool memory foam has an open cell structure that breathes better than standard memory foam, and the knitted cover enhances airflow. If you're a hot sleeper, this is a more sensible pick than a traditional all-foam mattress.
Does the Luna Memory 2500 come with a trial and guarantee?
Mattress Online offers a 100-night trial and states a 10-year guarantee. These are the retailer's own terms rather than a manufacturer promise, so check the conditions before you buy if purchasing elsewhere.
How deep is the Luna Memory 2500 mattress?
It's 25cm deep, combining a 4cm layer of cooling memory foam, reflex foam layers of 2cm and 3cm, and a core of 2500 pocket springs. Standard fitted sheets should work fine at this depth.
What sizes is the Luna Memory 2500 available in?
Five UK sizes: Single, Small Double, Double, King and Super King.
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