Mattress Online Memory Zone 2000 Pocket Small Double Mattress
The Memory Zone 2000 Pocket Mattress is a hybrid from Mattress Online, pairing 2000 pocket springs with a layer of memory foam under a soft knitted cover.
- Firmer feel for back & front sleepers
- Minimises partner disturbance
- 100-night trial & 5-year guarantee
£354
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Mattress Online Memory Zone 2000 Pocket Mattress
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Mattress details
Mattress
Mattress Online Memory Zone 2000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
Depth (cm)
25
Layers
3
Layer Details
Knitted cover
A soft knitted cover with a wave pattern and embroidered label. It adds a touch of cosiness and warmth to the sleep surface.
Memory Foam
A plush layer of memory foam that cushions the hardest parts of your body, like the shoulders and hips. This is where the pressure relief comes from.
Pocket Springs
2000 pocket springs, each responding to your weight individually. This contours to your body and relieves pressure across the night.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Real stretching room for one: At 30cm wider than the UK single, a solo sleeper can shift position freely without a shoulder or arm hanging off the edge.
- Fits rooms a double cannot: It's 15cm narrower than the UK double, which can be the difference between a door that opens fully and one that scrapes the bed frame.
- 2000 pocket springs across the full width: Each spring responds to your weight individually, which means support follows you whether you sleep centred or drift to one side.
- Sensible for occasional sharing: A couple staying the odd night in a guest room will manage comfortably, and the pocket springs limit disturbance when one person turns.
- Standard 4ft sizing: Small double frames, fitted sheets and mattress protectors are widely stocked in the UK, so kitting out this size is straightforward.
This size suits you if...
You sleep alone and have outgrown a UK single but your room can't spare the width of a full double, you're furnishing a box room, loft conversion or holiday let second bedroom where every centimetre beside the bed matters, or you want a guest bed that hosts the occasional couple without dominating the space. Allow at least 2.4m x 2.8m of floor space.
Consider another size if...
You share the bed most nights, since 120cm gets tight for two on a medium firm surface. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; allow at least 2.6m x 2.8m for it.
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FAQ's
Is a small double Memory Zone 2000 big enough for a couple?
For occasional nights, yes. The 2000 pocket springs respond to each sleeper individually, so a restless partner is less disruptive than on an open-coil bed. Every night is another matter: two adults sharing 120cm will feel it. If you share regularly, the UK double gives 67.5cm each, which most couples find noticeably more comfortable.
Will the small double Memory Zone 2000 fit in a box room?
In most cases, yes. The mattress is 120 x 190cm and we suggest a room of at least 2.4m x 2.8m so you can walk round it and open drawers. That's tighter than the 2.6m x 2.8m we'd want for a UK double, which is exactly why this size suits box rooms and studios.
Is the small double a good upgrade from a single for a teenager?
It's a sensible step up. The UK small double is 30cm wider than the UK single and exactly the same length, so a growing teenager gains real space without the bed swallowing the room. The medium firm feel suits back and stomach sleepers well, though very lightweight side sleepers may find it slightly firm.
How heavy is this mattress to move in a small double?
Mattress Online doesn't publish a weight for this size, but across verified owner reviews the Memory Zone 2000 is described as heavy, and rotating it alone is awkward. In a compact room with little clearance around the bed, plan on two people for rotating it, and clear the floor first.
Should I get the small double or size up to the UK king?
It depends on your room and how you sleep. The UK small double is 30cm narrower and 10cm shorter than the UK king, which gives 75cm each for two sharing but needs a room of at least 2.7m x 2.9m. If you sleep alone in a compact bedroom, the small double is the more practical buy.