Arthur Sleep Copper Arthur Mattress
Mattress
Arthur Sleep Copper Arthur Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Depth (cm)
Layers
Layer Details
- Real room to spread out: The UK small double is 30cm wider than the UK single, which means a solo sleeper can starfish without a bigger frame taking over the room.
- Fits where a double won't: At 15cm narrower than the UK double, it can be the difference between a wardrobe door that opens and one that doesn't.
- Independent springs for shared nights: The pocket springs move individually, which means an occasional guest shifting about is less likely to wake the other side of the bed.
- Medium firm for mixed guests: A medium firm feel suits most back and combination sleepers, a sensible middle ground when you can't predict who'll be sleeping on it.
- Standard 4ft sizing: The small double is a standard UK size, so frames and fitted sheets are easy to find, and a normal double duvet works fine on top.
This size suits you if...
You're a solo adult who has outgrown a single but your bedroom, box room or studio can't take a full double, or you're furnishing a guest room or holiday let where couples stay occasionally rather than nightly. It also suits a teenager moving up from a single in a room that still needs its floor space. Allow at least 2.4m x 2.8m for this size.
Consider another size if...
You share the bed every night, in which case the 120cm width feels tight over time. The UK double is 15cm wider at the same length; we suggest at least 2.6m x 2.8m of room for it.
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Is a small double Copper Arthur big enough for a couple?
For occasional nights, yes. At 120cm wide, two adults will manage, and the pocket springs mean one person turning over is less likely to disturb the other. As an every-night bed for two it feels snug, so full-time couples should look at the Copper Arthur in a UK double or UK king instead.
What room size do I need for the Copper Arthur small double?
We suggest at least 2.4m x 2.8m. That allows space to walk round the bed and open drawers or doors without shuffling sideways. In a loft conversion or box room, measure where the ceiling height and door swing actually fall before committing, since the 120cm width is often what decides it.
How much bigger is the small double than the single in this mattress?
The UK small double is 30cm wider than the UK single, and the two are the same length at 190cm. That extra width is the whole point of this size: enough for a solo sleeper to spread out properly without stepping up to a full double footprint.
Does the Copper Arthur small double work for a teenager's room?
It's a sensible step up. A teenager past a single gets 30cm of extra width, and the medium firm pocket spring feel gives decent support through growth years without the sink-in softness some youngsters find hot. Just check the room keeps enough clear floor: allow at least 2.4m x 2.8m.
What bedding fits the Copper Arthur in a UK small double?
You'll need small double, or 4ft, fitted sheets, which most UK bedding ranges stock as standard. A regular double duvet sits comfortably on top with a little overhang each side, so if you're upgrading from a single you'll likely only need new sheets, and any current double duvet carries over.