Millbrook Wool Sublime Pocket 4000 Single Mattress
The Millbrook Wool Sublime Pocket 4000 Mattress combines natural wool, silk and cotton fillings over pocket springs with a hand-tufted finish, which means a medium-to-firm feel that's built to be flipped and rotated.
- Natural wool, silk & cotton fillings
- Flip & rotate to even out wear
- Hand-tufted for lasting shape
£431.82
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Millbrook Wool Sublime Pocket 4000 Mattress
More available sizes
Mattress details
Mattress
Millbrook Wool Sublime Pocket 4000 Mattress
Size
Firmness
Medium Firm
Construction
Natural
Pocket Spring
Wool
Depth (cm)
31
Layers
Layer Details
Key benefits
- Fits a crowded small room: At 3ft x 6ft 3in, the UK single leaves space beside the bed for a wardrobe, a desk or a toy box in a compact bedroom.
- Workable in a loft room: A narrow footprint means you can tuck the bed under a sloping ceiling in a loft conversion, where a wider mattress would push into the low side.
- Room for two singles: In a guest room or a shared children's room, two UK single beds with a walkway between them often fit where one larger bed would.
- Easier to flip on your own: The mattress is double-sided, and turning a UK single is a far more manageable job for one person than turning a king or super king.
- Breathable for one: Natural fillings and built-in air vents help heat escape, which suits a teenager or solo adult who tends to warm up overnight.
This size suits you if...
You sleep alone and want a natural-filled, medium-firm mattress, or you're furnishing a child's or teenager's room where the bed has to share space with a desk and storage. It also suits a spare room that doubles as a study, where guests stay occasionally.
Consider another size if...
You share the bed most nights, or you want more room to spread out on your own. We'd recommend the UK small double instead, which is 30cm wider than the UK single; allow at least 2.4m x 2.8m for it.
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FAQ's
Will the Millbrook Wool Sublime Pocket 4000 single fit a bunk bed?
Possibly, but check before you buy. The mattress is 31cm deep, which is substantial, and bunk, cabin and mid-sleeper frames usually set a maximum mattress depth so the guard rail stays high enough. Compare the frame maker's limit with that 31cm figure. If it falls short, a standard-height divan or bed frame is the safer home for this mattress.
What size room do I need for a single Millbrook Wool Sublime Pocket 4000?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That leaves room to get in and out comfortably and to open drawers or a wardrobe nearby. If you're placing two UK singles side by side in a guest or shared room, measure for both beds plus a clear walkway between them.
What are the Millbrook Wool Sublime Pocket 4000 single dimensions in feet?
The UK single measures 3ft x 6ft 3in, which is 90 x 190cm. It's 31cm deep. Measure your existing frame or bed base against those figures, since an older or imported frame may not match standard UK single sizing exactly.
Is a UK single big enough for an adult?
For one adult of average height, yes. It's the standard UK one-person size and shares its length with the UK small double and UK double. Taller adults should know the UK single is 10cm shorter than the UK king. If your feet already reach the end of your current bed, a longer size will feel more comfortable.
Will this mattress suit a child in a UK single?
It can, with one caveat. The medium-firm feel gives steady support, which suits children who sleep on their back or move around. Lighter sleepers who lie on their side may find it a little firm, though, and most children are lighter than adults. If your child sleeps curled up on their side, weigh that before choosing.






