Millbrook Wool Ortho 1000 Pocket Mattress
Mattress
Millbrook Wool Ortho 1000 Pocket Mattress
Size
Firmness
Firm
Construction
Depth (cm)
24
Layers
3
Layer Details
- Comfort Layer. A layer of 100% Hampshire fleece wool, locally sourced from Hampshire. Wool is naturally breathable and temperature-regulating, so it helps keep you comfortable through the seasons.
- Comfort Layer. Natural English cotton fibres that regulate body temperature and wick away moisture. This means less of that clammy feeling on warmer nights.
- Support System. 1000 individually hand-nested pocket springs, each encased in its own cloth pocket. Because every spring moves independently, you get tailor-made support and less disturbance from a partner shifting position.
Layer details from mattressonline.co.uk product page, September 2026.
- Fits the typical UK bedroom: At 135 x 190cm (4ft 6in x 6ft 3in), it leaves space for a wardrobe and drawers where a UK king often wouldn't.
- Room for bedside tables both sides: In most rooms of 2.6m x 2.8m or more, a UK double still allows a table on each side of the bed.
- Independent support for two: Each of the 1000 pocket springs moves separately, which means less disturbance when your partner turns over on a shared double.
- Wool keeps a shared bed cooler: Two people generate more warmth than one, and the Hampshire fleece wool and English cotton fillings wick moisture rather than trapping heat.
- Easier to turn than bigger sizes: This mattress is double-sided and needs flipping, which is a far more manageable job at UK double width than at a UK king or super king.
- Bedding is cheap and everywhere: Double sheets and a 200 x 200cm duvet are stocked in every supermarket and department store, at every price point.
This size suits you if...
You share the bed every night and your room sits around the typical UK size, where a UK king would leave little walking space. It also suits a guest room that hosts visiting couples, since firm support tends to divide opinion less than a very soft feel. And if you sleep alone but a dog or cat claims a corner, 135cm of width absorbs that better than a UK single.
Consider another size if...
You and your partner are both broad-shouldered or restless, since 67.5cm each for two people sharing can feel snug on a firm surface. If your room allows at least 2.7m x 2.9m, we'd recommend the UK king instead, which gives 75cm each.
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Is the Millbrook Wool Ortho 1000 in a UK double big enough for a couple?
For most couples, yes. A UK double gives 67.5cm each for two people sharing, and because the 1000 pocket springs respond to each sleeper separately, you feel less of a partner's movement than the width alone suggests. Larger builds or restless sleepers may prefer the UK king, which gives 75cm each.
What room size do I need for the Millbrook Wool Ortho 1000 double?
We suggest allowing at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That leaves room to walk around the bed and open wardrobe doors. Because this mattress is double-sided and needs regular turning, a little clearance on both sides makes that job noticeably easier.
Should I get this mattress in a UK double or a UK king?
It comes down to your room. The UK double is 15cm narrower and 10cm shorter than the UK king, so it suits rooms where a king would dominate. If you can allow at least 2.7m x 2.9m and you both want more personal space, the UK king is the better long-term buy.
Is a firm double mattress a good choice for a guest room?
It works well. Visiting couples vary in build and sleeping position, and a firm pocket spring surface with breathable wool fillings suits back sleepers and heavier guests without feeling stuffy. Lightweight side sleepers may find it a little hard, so a mattress topper kept in the cupboard is a sensible backup.
Will a UK double mattress get up the stairs in an older house?
Usually, yes. At 135cm wide and 24cm deep, a UK double is easier to manoeuvre round a turning staircase or a tight landing than a UK king or super king. Pocket spring mattresses shouldn't be bent sharply, though, so measure any awkward corners before delivery day rather than after.