Last seen for £678 at Mattress Online on 5th November 2026
Millbrook Smooth Tech 4000 Pillow Top Small Double Mattress
The Millbrook Smooth Tech 4000 Pillow Top Mattress combines a wool, cotton, silk and cashgora pillow top with micro springs and pocket springs, which means a soft, cushioned surface with support zoned in seven areas.
- Cushioned pillow top feel
- Zoned support in seven areas
- Reinforced edges for sitting & sleeping
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More available sizes
Last seen for £678 at Mattress Online on 5th November 2026
Mattress details
Mattress
Millbrook Smooth Tech 4000 Pillow Top Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Wool
Depth (cm)
32
Layers
3
Layer Details
Pillow top comfort layer
A pillow top filled with a blend of wool, cotton, silk and cashgora. It gives the surface a soft, cushioned feel without relying on foam.
Micro springs
3000 Comfonomic micro springs provide pressure relief and targeted support, so the mattress responds closely to your shape.
Pocket springs
1000 ergonomic pocket springs form the internal support system. They give the mattress its underlying support and stop the soft top from feeling vague.
Layer details from wantmattress.com product page, October 2026.
Key benefits
- Room to spread out alone: At 30cm wider than the UK single, the UK small double lets a solo sleeper change position across the medium pillow top without ending up near the edge.
- Fits a compact bedroom: We suggest at least 2.4m x 2.8m for the UK small double, which suits box rooms and loft conversions where a wider bed would leave no space to walk past.
- Steadier sides on a narrower bed: The rod-frame edge with butterfly springs keeps the sides firmer when you sit down, which helps on a UK small double where you use more of the width.
- Standard bedding, deeper sheets: Small double fitted sheets and a standard double duvet are easy to find, although you'll want deep-pocket sheets because the mattress is 32cm deep.
- Sensible for a guest room: Visiting couples can share it for a night or two, and the rest of the year it takes up a little less of a spare room than a UK double would.
This size suits you if...
You sleep alone and like room to sprawl, your bedroom is too tight for a UK double, or you want a guest bed that takes a visiting couple now and then without dominating the room.
Consider another size if...
You share the bed with a partner every night. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; we suggest at least 2.6m x 2.8m for the UK double.
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FAQ's
Is the Millbrook Smooth Tech 4000 Pillow Top small double big enough for two people?
For occasional stays, yes, and many guest rooms use a UK small double this way. For couples sharing every night it gets cramped. The UK double is 15cm wider at the same length and gives 67.5cm each for two sharing, so we'd point nightly sharers there.
What size room do I need for a Millbrook Smooth Tech 4000 small double?
We suggest allowing at least 2.4m x 2.8m for a UK small double. That leaves room to get in and out and to open the door freely. In a box room, measure the door swing as well as the floor, because the width of the bed usually decides whether the door still clears.
What bedding fits a Millbrook Smooth Tech 4000 Pillow Top in small double?
Buy small double (4ft) fitted sheets and use a standard double duvet. The mattress is 32cm deep with a pillow top, so look for deep-pocket fitted sheets; shallow ones tend to pull off the corners. Regular double-size pillowcases and covers are fine.
Should I get a small double or a double Millbrook Smooth Tech 4000?
Both are 190cm long, so the choice comes down to width and room. The UK small double is 15cm narrower and needs less floor, with our suggested minimum of 2.4m x 2.8m against 2.6m x 2.8m for the UK double. Sleep alone in a smaller room? The UK small double makes more sense.
Is a 4ft pillow top mattress a good upgrade for a teenager?
It's a sensible step up from a single. The UK small double is 30cm wider than the UK single and the same length, so the bed gains width without reaching further into the room. We suggest at least 2.4m x 2.8m for the UK small double, against 2.1m x 2.8m for the UK single.