Luna Memory 2500 Pocket Hybrid Small Double 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
£790
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Luna Memory 2500 Pocket Hybrid Mattress
More available sizes
Mattress details
Mattress
Luna Memory 2500 Pocket Hybrid Mattress
Size
Firmness
Medium Firm
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
Depth (cm)
25
Layers
4
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.
Key benefits
- Real space for one: At 120cm across, the UK small double is 30cm wider than the UK single, so you can stretch out or change position freely.
- Fits compact rooms: It is 15cm narrower than the UK double, which can be the difference between a door that clears the bed and one that doesn't.
- Full spring count in a smaller footprint: You still get the 2500 individually pocketed springs, so support follows your shape rather than pushing back as one block.
- Cooler contouring: The 4cm Fusion Cool memory foam layer has an open cell structure, which means it breathes better than standard memory foam if you run warm.
- Easy to kit out: 4ft is a standard UK size, so small double fitted sheets and frames are straightforward to find, and a standard double duvet works fine.
This size suits you if...
You sleep alone and have outgrown a single but your room can't take a full double, you're furnishing a loft conversion or studio where every centimetre of floor matters, or you're setting up a guest room where couples stay occasionally rather than nightly. The medium firm feel rewards back and stomach sleepers, and the pocket springs mean an occasional second sleeper won't jolt you awake.
Consider another size if...
You share the bed every night, as 120cm gets tight for two adults over the long term, especially on a firmer surface with little sink. We'd recommend the UK double instead, allowing at least 2.6m x 2.8m of room.
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FAQ's
Is a small double big enough for the Luna Memory 2500 to suit two people?
For occasional stays, yes. The pocket springs respond individually, so one person moving disturbs the other less than a traditional sprung mattress would. For a couple every night, 120cm of width means around 60cm each, tighter than a single, and the medium firm feel gives little sink to soften the squeeze. We'd suggest the UK double for full-time sharing.
What room size do I need for the Luna Memory 2500 small double?
We suggest allowing at least 2.4m x 2.8m. That leaves enough space to walk around the bed, open the door fully and fit a small bedside table. In a loft conversion, check where the ceiling height falls too, since the extra 30cm of width over a UK single may push the bed under the slope.
How does the small double compare with the UK double for this mattress?
The UK small double is 15cm narrower than the UK double, and both are the same 190cm length. The construction is identical: same springs, foam layers and medium firm feel. So the choice is purely about space. If your room comfortably meets the 2.6m x 2.8m we suggest for the UK double, sizing up gives a couple noticeably more elbow room.
Is the Luna Memory 2500 small double a good upgrade from a single?
It's a strong step up for a teenager or adult who has outgrown a UK single. You gain 30cm of width at the same length, which means proper room to spread out, and the medium firm support suits growing backs and back sleepers generally. Just measure first, since the extra width has to come from somewhere in the room.
What bed frame fits the Luna Memory 2500 in small double?
Any standard UK small double frame, sometimes sold as a 4ft frame, will fit the 120 x 190cm (4ft x 6ft 3in) mattress. It's a common UK size, so frames, divans and fitted sheets are easy to find. Avoid a standard double frame, which is 15cm wider and would leave the mattress sliding about.