Millbrook Smooth Tech 4000 Pillow Top 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
£634
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Millbrook Smooth Tech 4000 Pillow Top Mattress
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
- Fits an ordinary bedroom: At 135 x 190cm it leaves room for a wardrobe and drawers in a modest room, and we suggest allowing at least 2.6m x 2.8m.
- Edges you can sleep on: A rod frame and butterfly springs firm up the perimeter, which means two people on a UK double can use more of the width without the sides dipping.
- Space for two bedside tables: Choosing the UK double over the UK king keeps the bed 15cm narrower and 10cm shorter, which can decide whether two bedside tables fit.
- Medium feel for mixed couples: Seven support zones and micro springs respond closely to your shape, so the medium rating should suit most partners sharing the bed, although very firm fans may disagree.
- Bedding is easy to find: Double sheets and duvets are sold almost everywhere and a 200 x 200cm double duvet fits, although the 32cm depth calls for deep fitted sheets.
This size suits you if...
You share with a partner in an average-sized bedroom and still want space for bedside tables on both sides, or you sleep alone and like room to stretch out, perhaps with a cat claiming the foot of the bed.
Consider another size if...
You both sprawl at night, or either of you finds 190cm too short. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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FAQ's
Is the Millbrook Smooth Tech 4000 Pillow Top UK double big enough for two people?
For most couples, yes. The UK double gives 67.5cm each, which feels cosy rather than roomy. The reinforced edge helps, because you can lie close to the side without it giving way. If either of you is a restless sleeper, the UK king gives 75cm each, so 7.5cm more per person.
What size bedroom do I need for a UK double Millbrook Smooth Tech 4000?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the more comfortable norm. That leaves walking space around the bed and usually room for a wardrobe or chest of drawers. In a tighter second bedroom, measure where the doors and drawers open before deciding.
Should I get the Millbrook Smooth Tech 4000 Pillow Top in a UK double or UK king?
The UK king is 15cm wider and 10cm longer, giving each sleeper 75cm against 67.5cm on the UK double. It needs at least 2.7m x 2.9m of room. If your bedroom is smaller than that, or you want bedside tables both sides, the UK double is the more practical choice.
Is the UK double Millbrook Smooth Tech 4000 Pillow Top good for a guest room?
It suits a guest room well if you host visiting couples. The medium feel is a safe middle ground for people whose preferences you don't know, and the 135 x 190cm footprint fits a typical spare room. The pillow top gives guests a cushioned surface without feeling soft.
What sheets fit a Millbrook Smooth Tech 4000 Pillow Top double?
Look for UK double fitted sheets with a deep pocket, since the mattress is 32cm deep and standard sheets may not tuck under. A 200 x 200cm double duvet fits the bed. Double bedding is easy to find, so you can compare plenty of options at different prices.