Millbrook Wool Luxury Latex 4000 Pocket Mattress
Mattress
Millbrook Wool Luxury Latex 4000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
32
Layers
7
Layer Details
- Damask cover. A finely woven damask cover that is soft to the touch. Damask is a durable fabric, so it should hold up well over years of use.
- Natural fibre comfort layer. A blend of Hampshire wool, silk and cashgora gives a plush, cosy surface feel. Wool and silk are naturally breathable, which helps with temperature regulation.
- Cotton blend comfort layer. A cotton and polyester blend adds further breathability. In practice, this means less heat building up around you overnight.
- Graphite latex. A layer of graphite latex foam that shapes around your body while keeping a natural bounce. It is highly adaptive, so it contours without the slow, stuck-in feel some foams have.
- Pocket spring support core. A core of 1,000 pocket springs with a 7-zone ergonomic design that adapts to your movement. Zoning means different areas of the mattress respond differently, supporting hips and shoulders where they need it.
- Mini springs. 3,000 mini springs sit within the mattress to add bounce and increase comfort. Combined with the pocket spring core, that brings the total to 4,000 springs.
- Ultra Edge support. A rod wire frame with butterfly clips forms Millbrook's Ultra Edge system. This firms up the perimeter, so you can sleep near the edge without feeling you might roll off.
Layer details from mattressonline.co.uk product page, September 2026.
- 90cm of width each: Two people sharing get 90cm apiece, which means a partner who turns over all night becomes far easier to sleep through.
- Room for the whole household: When children pad in at night or a dog claims a corner, the full 180cm width means everyone still keeps a fair share of the bed.
- Edges you can actually use: Millbrook's Ultra Edge rod wire frame firms up the perimeter, so all 180cm is usable sleeping space rather than a soft border you avoid.
- Natural fillings across a big surface: Hampshire wool, silk and cashgora breathe well, which helps when two bodies are warming one mattress all night.
- Zoned support for two different sleepers: The 7-zone pocket springs respond to each sleeper independently, useful at this size where you and your partner may be different builds entirely.
This size suits you if...
You share the bed every night and have found even a UK king leaves you aware of each other's movement, children or pets regularly join you and you want everyone to fit without anyone hanging off the side, or you have a large master bedroom where a smaller bed would look lost. Your room should measure at least 3m x 2.9m.
Consider another size if...
Your bedroom is under 3m x 2.9m, or you mostly sleep alone. We'd recommend the UK king instead: it's 30cm narrower but the same 200cm length, still gives 75cm each for two sharing, and we suggest at least 2.7m x 2.9m for it.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
How much space do two people get on the Millbrook Wool Luxury Latex 4000 in a UK super king?
You get 90cm each when two people share, the most any standard UK size offers. Combined with the 7-zone pocket springs responding to each of you separately, that distance does more for undisturbed sleep than any comfort layer could. If a child or pet joins you, there's genuinely room to absorb them.
Is the UK super king worth it over the UK king for this mattress?
The UK super king is 30cm wider than the UK king; both are the same 200cm length. That works out at 15cm more width each for two sharing. If one of you is a restless sleeper, or children come in most nights, the extra width is what you'll notice. In a smaller room, the UK king is the sensible pick.
What size room does the super king Millbrook Wool Luxury Latex 4000 need?
We suggest at least 3m x 2.9m. That allows walking space on both sides and room for bedside tables, and it's our guidance rather than Millbrook's. Check door swing and wardrobe access too; a bed this wide can make a merely adequate room feel cramped in ways a floor plan doesn't show.
How does the UK super king compare with the UK double for this Millbrook mattress?
The UK super king is 45cm wider and 10cm longer than the UK double. For two sharing, that's 22.5cm more width each, the difference between negotiating space and forgetting your partner is there. The UK double still suits couples in smaller rooms; we suggest at least 2.6m x 2.8m for that size.
Which retailers stock the Millbrook Wool Luxury Latex 4000 in a UK super king?
Stock moves around, so the most reliable answer is the live comparison table on this page, which updates as retailers change their listings and prices. It's worth comparing before you buy, because pricing on larger sizes like the UK super king tends to vary more between retailers than on smaller ones.