Millbrook Smooth Tech Luxury 5000 Pocket Single Mattress
The Millbrook Smooth Tech Luxury 5000 is a pocket spring mattress with a medium feel, handcrafted in the UK and filled with natural materials: wool, silk, cashgora and cotton.
- Mini springs ease pressure points
- Minimises partner disturbance
- Wool, silk & cashgora stay breathable
£724
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Millbrook Smooth Tech Luxury 5000 Pocket Mattress
More available sizes
Last seen for £2,974 at Mattress Online on 25th June 2026
Mattress details
Mattress
Millbrook Smooth Tech Luxury 5000 Pocket Mattress
Size
Firmness
Medium Soft
Construction
Pocket Spring
Wool
Depth (cm)
30
Layers
4
Layer Details
Comfort fillings
A blend of wool, silk, cashgora and cotton, which means a breathable, temperature-regulating sleep surface. Natural fibres like these tend to wick moisture better than foam.
Mini Pocket Springs
4000 mini pocket springs sit near the surface for added comfort and pressure relief. They also decrease motion transfer, so you feel less of a partner's movement.
Pocket Springs
1000 traditional pocket springs, each enclosed in its own cloth pocket. They respond independently to movement, which means support that follows your shape rather than pushing back as one unit.
Border reinforcement
The edge is reinforced with butterfly springs and secured with a rod frame. That means firmer edge support, useful for sitting on the bed or sleeping close to the side.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Full spring count in a small footprint: The single keeps the layered construction of 4000 mini pocket springs over 1000 traditional ones, so a solo sleeper gets the same pressure relief as the bigger sizes.
- Space to spare in compact rooms: At 90cm wide it leaves room for a desk, wardrobe or toy storage, which matters when the bed shares a small bedroom with everything else.
- Reinforced edges for perching: Butterfly springs and a rod frame firm up the border, useful in a child's room where the bed edge doubles as a seat at story time.
- Natural fillings for warm sleepers: Wool, silk, cashgora and cotton wick moisture better than synthetic foams, which teenagers who run hot at night will appreciate.
- A gentle feel for lighter bodies: The medium soft surface suits lighter sleepers, so children and slimmer adults sink in enough to feel cushioned rather than perched on top.
This size suits you if...
You're buying for a child or teenager and want a mattress with natural fillings that will still feel right in five years, you sleep alone in a compact room or a loft conversion where 90cm of width is the sensible limit, or you're furnishing a spare room and want guests to sleep on something genuinely comfortable rather than an afterthought.
Consider another size if...
You're an adult who spreads out at night and finds 90cm restrictive. The Millbrook Smooth Tech Luxury 5000 also comes in a UK small double, which is 30cm wider at the same length; we suggest a room of at least 2.4m x 2.8m for it.
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FAQ's
Will the Millbrook Smooth Tech Luxury 5000 UK single fit a bunk bed?
The 90 x 190cm footprint matches standard UK bunk frames, but the depth is the sticking point. At 30cm, this mattress is likely to sit above the safety rail on many bunks and mid sleepers, and it needs regular turning, which is awkward on a raised frame. For bunks, a shallower mattress is usually the safer choice.
Is a UK single Millbrook Smooth Tech Luxury 5000 suitable for an adult?
Yes, if you sleep alone and don't sprawl. The full dual spring system and natural fillings are present in the UK single, so an adult in a student room, first flat or box room gets proper support in the smallest standard footprint. Heavier back sleepers may find the medium soft feel a little too giving, whatever the size.
What room size do I need for a UK single mattress?
We suggest at least 2.1m x 2.8m of floor space for a UK single, which gives you a walkway and space to open drawers or a wardrobe. That makes it a realistic fit for box rooms, loft conversions with a narrow flat section, or a child's bedroom where the bed competes with a desk and storage.
Is the UK single a good choice for a guest room?
It works well where you want two beds rather than one, since a pair of UK singles fits where a larger bed wouldn't and lets two guests sleep separately. The medium soft feel and breathable natural fillings suit occasional use nicely, though a spare room that mainly hosts couples might be better served by one UK double.
Can one person turn the UK single on their own?
More easily than the larger sizes. This mattress needs regular rotation and some owners find the handles awkward, but at 90cm wide the UK single is the most manageable size in the range for one person to handle. If you're buying for a child, plan on doing the turning yourself for a few years.