Millbrook Smooth Tech Luxury 3000 Pocket Mattress
Mattress
Millbrook Smooth Tech Luxury 3000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
33
Layers
5
Layer Details
- Cover. A soft knitted cotton-viscose cover that enhances airflow, which means heat escapes rather than building up at the surface. It feels gentle from the first night.
- Comfort Layer. Layers of 100% Hampshire wool, naturally durable, springy and heat regulating. Wool keeps you warmer in winter and cooler in summer, a real benefit for hot sleepers.
- Comfort Layer. Natural cotton fibres that regulate body temperature while wicking away moisture. This keeps the sleeping surface feeling fresh rather than clammy.
- Core. A 100% recycled NemoFlex™ core made from recycled polyester using over 200 plastic bottles. It provides edge-to-edge support, so you can use the full width of the mattress.
- Support System. 3000 traditional pocket springs encased in cloth pockets that adapt to your movement. Each spring works independently, which means less disturbance from a restless partner.
Layer details from mattressonline.co.uk product page, September 2026.
- Real room for one: At 30cm wider than the UK single, a solo sleeper can stretch, roll and change position without meeting the edge.
- Fits where a double cannot: It is 15cm narrower than a UK double, which can be the difference between a door that clears and one that does not in a box room or loft conversion.
- Every centimetre usable: The NemoFlex™ core gives edge-to-edge support, so the full 120cm width holds you rather than sagging where you sit or sleep near the side.
- Handles the occasional shared night: The 3000 pocket springs move independently, which means a guest room couple feel less of each other's movement despite the closer quarters.
- Wool that suits a small room: Compact bedrooms warm up quickly, and the Hampshire wool and cotton fillings wick moisture and shed heat rather than trapping it.
This size suits you if...
You sleep alone and have outgrown a single, perhaps a teenager whose room cannot spare more floor space, or your bedroom sits under the 2.6m x 2.8m we suggest for a UK double and you still want a bed you can share now and then. It also fits a guest room or holiday let where couples stay occasionally rather than every night.
Consider another size if...
You want more width and your room allows it, or your budget stretches to a bigger bed elsewhere. Within this mattress, the UK single suits a child's room or the tightest spaces; we suggest at least 2.1m x 2.8m for it.
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Is the Millbrook Smooth Tech Luxury 3000 small double big enough for a couple?
For occasional nights, yes. The pocket springs keep partner disturbance down and the recycled core supports right to the edges, so two people can use the full 120cm width. For nightly sharing it feels snug: the UK small double is 15cm narrower than a UK double, which gives 67.5cm each for two sharing.
What room size do I need for a small double mattress?
We suggest at least 2.4m x 2.8m for a UK small double, which leaves enough space to walk round the bed and open drawers or wardrobe doors. That is our guidance rather than Millbrook's. If your room falls short of it, the UK single needs at least 2.1m x 2.8m.
Does the Millbrook Smooth Tech Luxury 3000 come in anything bigger than a small double?
No. This mattress is made in UK single and UK small double only, so the UK small double is the largest option. If you need a UK double or UK king, you will have to look at a different model, as there is no larger size of this one to move up to.
Will the small double Millbrook Smooth Tech fit in a loft conversion or box room?
Often, yes, and that is much of its appeal. At 120 x 190cm, or 4ft x 6ft 3in, it slots into rooms where a double leaves no standing room beside the bed. Measure your usable floor against our suggested minimum of 2.4m x 2.8m, and check sloped ceilings and door swing before ordering.
How much bigger is the small double than the single in this mattress?
The UK small double is 30cm wider than the UK single, and the two are exactly the same length at 190cm. That extra width is the whole difference: a solo sleeper gains genuine spreading room, while the bed takes up no more length. The feel, depth and fillings are the same in both sizes.