Millbrook Wool Sublime Soft Pocket 11000 King Size Mattress
The Millbrook Wool Sublime Soft Pocket 11000 is a premium pocket sprung mattress from Millbrook, available in six UK sizes from Small Single up to Super King.
- Soft, cushioned feel for side sleepers
- Natural wool & silk fillings
- Double-sided for even wear
£1,620.33
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Millbrook Wool Sublime Soft Pocket 11000 Mattress
More available sizes
Mattress details
Mattress
Millbrook Wool Sublime Soft Pocket 11000 Mattress
Size
Firmness
Soft
Construction
Pocket Spring
Wool
Depth (cm)
Layers
4
Layer Details
Viscose cover
A chemical-free viscose fabric that is soft to the touch, breathable and has a silk-like lustre. It gives a smooth, gentle surface to sleep on.
Natural fillings
Layers of Hampshire wool, cashgora wool, silk and soft English spun cotton, hand tufted to hold them in place. They give a natural, cushioned feel and keep the filling from shifting.
Pocket spring comfort layers
Three 1500 pocket spring tablet comfort layers sit on either side of the central springs. They add a springy cushioning on both sides, which suits a mattress you can turn.
Central pocket spring core
A central core of 2000 pocket springs, each housed in its own cloth sleeve. Each spring works on its own, so the core gives support that follows your body.
Layer details from archerssleepcentre.co.uk and bedconnect.co.uk product pages, October 2026.
Key benefits
- Space to sleep on different schedules: With 75cm each, an early riser can slip out while pocket springs keep movement localised, so the partner still asleep is less likely to notice.
- Extra length for taller sleepers: At 200cm, the UK king is 10cm longer than the UK double, which matters more than width if one of you is nudging six foot.
- A real step up from a double: It's 15cm wider than the UK double, which works out at 7.5cm more each, a difference you feel every time someone turns over.
- Softer feel with room to spread out: A soft mattress invites you to settle in, and the wider footprint means doing so without ending up shoulder to shoulder.
- Room for the dog: If a pet claims the foot of the bed most nights, the extra width over a UK double stops that habit costing you sleep.
This size suits you if...
You share the bed every night and the double has started to feel tight, one of you gets up hours before the other and you want the springs and the space to absorb that, or someone in the bed is approaching six foot and keeps finding their feet at the edge. Your room can give the 2.7m x 2.9m we suggest as a minimum.
Consider another size if...
Your bedroom is smaller than the 2.7m x 2.9m we suggest, which is common in newer builds once wardrobes go in. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m and still sleeps two comfortably.
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FAQ's
Is the Millbrook Wool Sublime Soft Pocket 11000 in a UK king good for couples?
Yes, and it's arguably the size where a soft pocket sprung mattress makes most sense for two. You get 75cm of width each, so you can both settle into the softer surface without drifting into the middle, and the pocket springs help keep one person's movement from travelling across the bed.
What room size fits a UK king mattress?
We suggest at least 2.7m x 2.9m for a UK king, with more feeling comfortable once you add bedside tables and wardrobe doors. That's our guidance rather than Millbrook's. If your room falls short, the UK double version of this mattress needs at least 2.6m x 2.8m by our reckoning.
Should I choose the UK king or UK super king in this mattress?
The UK super king is 30cm wider, giving 90cm each against the UK king's 75cm, and the two are the same length. If your room can offer at least 3m x 2.9m and you want maximum separation, size up. For most couples the UK king is the more practical fit.
How much bigger is the UK king than the double?
The UK king is 15cm wider and 10cm longer than the UK double. Per person, that's 75cm each rather than 67.5cm. On a soft mattress like this one, where you naturally settle in rather than perch on top, that extra width per sleeper is the difference you'll actually feel.
Is the UK king long enough for someone over six foot?
At 200cm, or 6ft 6in, the UK king gives a comfortable margin for anyone around or just over six foot. That's 10cm longer than the UK double, so if length is the reason you're upgrading, the UK king solves it without needing the room space a UK super king demands.