Millbrook Wool Sublime Soft Pocket 8000 Super King 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
£1,623.87
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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
- 90cm each for two sharing: That is the width of a UK single per person, which means turning over, spreading out or sleeping at odd angles rarely disturbs the other side.
- Distance beats any comfort layer: If your partner shifts constantly through the night, the extra space in a super king does more for you than any spring count could.
- Room for night-time visitors: When children or a large dog treat your bed as theirs, a super king means everyone still gets a workable share of the mattress.
- Fills a big master properly: In a period property or a large new build master, a UK king can look a little lost; the super king sits in proportion.
- 15cm more each than a UK king: The super king is 30cm wider than the UK king at the same length, giving each sleeper 15cm more, which is the difference you actually feel.
This size suits you if...
You share the bed every night and want the most space a standard UK size can offer, your children or pets regularly join you and a king no longer stretches to everyone, or your partner is restless enough that extra distance matters more to you than any mattress feature. Your bedroom should comfortably clear our suggested minimum of 3m x 2.9m.
Consider another size if...
Your bedroom falls short of the 3m x 2.9m we suggest for a super king, or you sleep alone. We'd recommend the UK king instead: it still gives 75cm each for two sharing, and we suggest at least 2.7m x 2.9m of room for it.
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FAQ's
Is the Millbrook Wool Sublime Soft Pocket 8000 super king big enough for a family sharing?
It is the most realistic size for it. At 180 x 200cm, two adults get 90cm each, so a child wandering in at 3am can squeeze between you without pushing anyone to the edge. It also has the same 200cm length as a UK king, so taller parents lose nothing by choosing the wider size.
How much bigger is the super king than the king in this mattress?
The UK super king is 30cm wider than the UK king, and the two are the same length. Shared between a couple, that works out at 15cm more space each: the UK king gives 75cm per person against the super king's 90cm. If one of you is a restless sleeper, that extra distance is the main reason to size up.
What room size do I need for the Millbrook Wool Sublime Soft Pocket 8000 in a super king?
We suggest a minimum of 3m x 2.9m, which allows walking space on both sides and room for bedside tables. Check door swing too, as a bed this wide can sit closer to the door than you expect. In a loft conversion, the slope will usually decide which wall can take a 180cm wide frame.
Will the super king version of this mattress get up my stairs?
Millbrook doesn't publish a weight or confirm whether this size splits into zip and link halves, so check with the retailer before ordering. A one-piece 180 x 200cm pocket sprung mattress is awkward on tight landing turns, and at this size it pays to measure the whole route to the bedroom first.
Is the Millbrook Wool Sublime Soft Pocket 8000 a soft mattress in the super king?
The name suggests a soft pocket sprung feel, but Millbrook publishes little specification detail for this model, so we can't confirm the firmness rating or the comfort layers. Firmness doesn't change between sizes, so whatever the retailer confirms applies equally to the super king. Ask before buying, particularly if a soft feel is the reason you're considering it.