Millbrook Wool Sublime Soft Pocket 8000 Small Double Mattress
The Millbrook Wool Sublime Soft Pocket 8000 is a pocket sprung mattress from Millbrook, available in six UK sizes from Small Single up to Super King.
- Soft to medium feel
- Natural wool, silk & cotton fillings
- Flip & rotate to even out wear
£1,244.23
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Millbrook Wool Sublime Soft Pocket 8000 Mattress
More available sizes
Mattress details
Mattress
Millbrook Wool Sublime Soft Pocket 8000 Mattress
Size
Firmness
Soft
Construction
Pocket Spring
Wool
Depth (cm)
Layers
3
Layer Details
Viscose cover
The mattress is upholstered in a premium viscose fabric. It forms the smooth outer surface you sleep against, over the natural fillings below.
Natural fillings
Layers of Hampshire wool, cashgora wool, silk and soft English spun cotton make up the filling. They give a natural, cushioned feel without foam, and the mattress is double sided so you can flip and rotate it.
Pocket spring unit with comfort layers
The core has 2000 pocket springs in individual cloth sleeves, with a 1000 and a 2000 tablet comfort layer of pocket springs on either side. The springs move independently, so the mattress can respond to your body, and the extra spring layers add to the soft to medium feel.
Layer details from archerssleepcentre.co.uk and bedconnect.co.uk product pages, October 2026.
Key benefits
- Real space for one: At 30cm wider than the UK single, it suits a solo adult who has outgrown a narrow bed and wants room to change position freely.
- Fits where a double won't: It's 15cm narrower than the UK double, which can be the difference between a door that clears the bed and one that doesn't.
- Modest room requirement: We suggest allowing at least 2.4m x 2.8m, less floor space than any full double demands, so bedside access on both sides is still possible.
- Sensible for occasional sharing: A couple can share it for a weekend stay comfortably enough, which makes it a practical pick for a guest room nobody uses nightly.
- Standard bedding size: The 4ft small double is a standard UK size, so fitted sheets and frames are easy to find, and a standard double duvet works on top.
This size suits you if...
You sleep alone and want more width than a UK single without giving up the floor space a full double takes, your bedroom, box room or loft conversion is tight enough that 15cm of width genuinely matters, or you're furnishing a guest room or holiday let where couples stay occasionally rather than every night.
Consider another size if...
You share the bed every night, because 120cm across two adults is a squeeze long term. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; allow at least 2.6m x 2.8m of room space.
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FAQ's
What size is the Millbrook Wool Sublime Soft Pocket 8000 small double?
The UK small double measures 120 x 190cm, which is 4ft x 6ft 3in. That's 30cm wider than the UK single at the same length, and 15cm narrower than the UK double, again at the same length. It's the middle ground: extra width for one person without the footprint of a full double.
Is a small double Millbrook Wool Sublime big enough for a couple?
For occasional nights, yes. Two adults can share 120cm of width for a weekend visit without complaint, which is why this size works well in guest rooms. For a couple sleeping together every night we'd suggest sizing up: the UK double gives 67.5cm each, and the UK king gives 75cm each.
How much room do I need for a small double mattress?
We suggest allowing at least 2.4m x 2.8m. That leaves enough space to walk round the bed and open the door and wardrobe without shuffling sideways. If your room is bigger, around 2.6m x 2.8m or more, the UK double becomes an option; below our suggested minimum, consider the UK single instead.
Is the small double a good choice for a loft conversion or box room?
Often, yes. In rooms where sloping ceilings or a narrow layout leave little standing room beside a double, the 15cm you save over the UK double can restore a usable walkway. Measure the clear floor space first and check it against our suggested minimum of 2.4m x 2.8m before committing.
What's the difference between the small double and the UK king for this mattress?
The UK small double is 30cm narrower and 10cm shorter than the UK king, which gives 75cm each for two sharing and needs a room of at least 2.7m x 2.9m by our guidance. The small double suits one person in a compact room; the king suits couples with space to spare.