Millbrook Wool Luxury Latex 4000 Pocket Double Mattress
The Millbrook Wool Luxury Latex 4000 Pocket Mattress is a 32cm deep hybrid that pairs 4,000 springs with natural fillings, including Hampshire wool, silk and cashgora, plus a layer of graphite latex.
- Springy latex contours to your body
- Natural fibres regulate temperature
- Zoned support where you're heaviest
£1,055
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Millbrook Wool Luxury Latex 4000 Pocket Mattress
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Mattress details
Mattress
Millbrook Wool Luxury Latex 4000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Foam
Pocket Spring
Hybrid
Wool
Latex
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.
Key benefits
- A shared size that actually shares: At 135cm wide you get 67.5cm each for two people sharing, and the 7-zone pocket springs respond to each sleeper separately.
- Usable edges matter more in a double: With less width each than a UK king, Millbrook's Ultra Edge rod wire frame keeps the outer inches supportive, so neither of you feels perched.
- Fits most UK bedrooms: Allow at least 2.6m x 2.8m and you should still have space for bedside tables on both sides, which a UK king often rules out.
- Less partner disturbance than the spring count suggests: The 4,000 springs and graphite latex absorb movement well, useful when 135cm puts you closer to a restless partner.
- Easy to dress: Standard double sheets and a 200 x 200cm duvet fit, stocked everywhere at every price, which keeps running costs down after a premium mattress purchase.
This size suits you if...
You share the bed most nights and want the traditional couples' size, or you sleep alone and like room to stretch, perhaps with a dog or cat claiming one corner. It also makes a generous guest room bed for visiting couples, since the medium firm feel with wool and latex on top suits a wide range of unknown sleepers.
Consider another size if...
You and your partner both like space, or one of you is tall, since 190cm length is snug over 6ft. We'd recommend the UK king instead: it gives 75cm each for two sharing, and we suggest a room of at least 2.7m x 2.9m.
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FAQ's
What are the dimensions of the Millbrook Wool Luxury Latex 4000 in a UK double?
It measures 135 x 190cm, which is 4ft 6in x 6ft 3in. That is the standard UK double footprint, so any double bed frame or divan base will fit it, and standard double bedding will too. The 32cm depth is unusually deep, so check your fitted sheets have deep enough pockets.
Is the UK double Millbrook Wool Luxury Latex 4000 big enough for a couple?
For most couples, yes. You get 67.5cm each for two people sharing, and the Ultra Edge support means the full width stays usable rather than the sides feeling soft. If either of you is broad shouldered or tends to sprawl, the UK king gives 75cm each, which is 7.5cm more per person.
What room size do I need for this mattress in a UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That smaller minimum is the UK double's real advantage: in a typical British bedroom it leaves space for a wardrobe, drawers and bedside tables on both sides where a larger size would crowd the walkways.
Will the Millbrook Wool Luxury Latex 4000 double fit up a narrow staircase?
It should manage most homes, but plan ahead. This is a 32cm deep pocket sprung hybrid, so it arrives full size rather than rolled, and turning it on the stairs of an older terrace or a tight new build landing takes two people. Measure your narrowest turn against 135 x 190cm before ordering.
Would this mattress be better in a UK double or a UK king?
The UK double suits typical UK bedrooms and couples happy at 67.5cm each. The UK king is 15cm wider and 10cm longer, worth having if either of you is over 6ft or you both like space, but it needs a room of at least 2.7m x 2.9m. Compare the retailers listed on this page for current pricing on each.