Millbrook Smooth Tech Luxury 1000 Pocket Mattress
Mattress
Millbrook Smooth Tech Luxury 1000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
28
Layers
3
Layer Details
- Comfort Layer. Sustainably sourced Hampshire wool with fine cotton fibres woven through it, sitting directly beneath you. Wool insulates in winter and breathes in summer, which means a more stable temperature through the night.
- Support System. A core of 1000 steel pocket springs, each enclosed in its own fabric pocket. Because every spring compresses independently, the mattress follows your shape rather than tilting as one surface, which also helps limit partner disturbance.
- Border. Sets of butterfly springs shaped to reinforce the mattress edge, held together by a rod frame. In practice that means firmer edges, useful if you sit on the bed to dress or tend to sleep near the side.
Layer details from mattressonline.co.uk product page, September 2026.
- The classic couples' footprint: At 135 x 190cm (4ft 6in x 6ft 3in), it gives two people a proper shared bed in a footprint that suits most UK bedrooms.
- Room left for the rest of your furniture: In a typical bedroom of 2.6m x 2.8m or more, there's usually still space for bedside tables on both sides plus a wardrobe.
- Less disturbance at this shared width: With 67.5cm each, the 1000 independent pocket springs matter, because your partner's turning compresses their side rather than tilting yours.
- Usable edge to edge: Butterfly springs and a rod frame firm up the border, which means the full 135cm width is sleepable rather than a soft strip you avoid.
- Easy to dress: Standard double sheets and a 200 x 200cm duvet fit, and both are stocked everywhere at every price.
This size suits you if...
You share the bed most nights and want the traditional couples' size that leaves your bedroom feeling like a room rather than a mattress showroom. It also suits a solo sleeper who likes space to spread out, perhaps with a dog or cat claiming a corner, or a guest room that regularly hosts visiting couples and needs a supportive, breathable mattress they won't grumble about.
Consider another size if...
You and your partner both like space, or one of you sleeps restlessly, and your room can take a bigger bed. The UK king gives 75cm each, 7.5cm more per person than the UK double, and we'd recommend it if you can allow at least 2.7m x 2.9m.
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.
Is the Millbrook Smooth Tech Luxury 1000 in a UK double big enough for a couple?
For most couples, yes. You get 67.5cm each, which is comfortable if you sleep fairly settled, and the 1000 pocket springs compress independently so a restless partner disturbs you less than the width alone suggests. Broad-shouldered pairs or anyone who sprawls may find it a little snug, in which case a UK king is the better call.
What size room do I need for the UK double Millbrook Smooth Tech?
We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m the comfortable norm. That allows walking space on both sides and, in most rooms, bedside tables too. Measure with drawers and wardrobe doors open before you order, especially in a second bedroom or first flat where furniture competes for floor space.
Should I choose this Millbrook mattress in a UK double or a UK king?
The UK double is 15cm narrower and 10cm shorter than the UK king, and the UK king gives 75cm each for two sharing, 7.5cm more per person. If your room allows at least 2.7m x 2.9m and you value spreading out, size up. If space is tighter, the UK double keeps the room usable and the feel is identical.
Will the UK double fit up a narrow staircase?
Unlike boxed foam mattresses, this is a traditional 135 x 190cm pocket spring design that can't be rolled or folded, so it goes up flat or on its side. Measure the turns on older terrace staircases and tight new build landings before ordering, and check delivery access details with the retailer listed on this page.
Is a UK double Millbrook Smooth Tech a good guest room choice?
It's well suited to guest rooms that host visiting couples, since a UK double sleeps two properly where a UK small double, 15cm narrower, feels cramped for guests who aren't used to sharing. The medium firm feel and breathable wool layer suit a wide range of visitors, and the firm edges help in rooms where the bed doubles as seating.