Millbrook Smooth Tech 5000 Pillowtop Small Double Mattress
The Millbrook Smooth Tech 5000 Pillowtop Mattress combines a pillow top with a wool, cotton, silk and cashgora comfort layer, which means you get a cushioned, medium-soft feel over a pocket spring core.
- Medium-soft feel for side sleepers
- Pillow top adds extra cushioning
- Wool, cotton & silk comfort layer
£929
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Millbrook Smooth Tech 5000 Pillowtop Mattress
More available sizes
Mattress details
Mattress
Millbrook Smooth Tech 5000 Pillowtop Mattress
Size
Firmness
Medium Soft
Construction
Pocket Spring
Wool
Depth (cm)
32
Layers
3
Layer Details
Pillow top
An additional layer of comfort sitting at the very top of the mattress. It adds extra cushioning, which means a softer first feel as you lie down.
Comfort layer
A fine blend of wool, cotton, silk and cashgora. These natural fibres give the surface its soft, cushioned feel.
Support core
Durable ergonomic pocket springs together with Comfonomic micro springs. This is the part that holds you up beneath the softer layers above.
Layer details from mattressonline.co.uk product page, October 2026.
Key benefits
- Room to spread out alone: The UK small double is 30cm wider than the UK single, which means a side sleeper can draw their knees up or turn over without reaching the edge.
- Fits tighter bedrooms: Being 15cm narrower than the UK double leaves a little more floor beside the bed, which can decide whether a wardrobe door or the bedroom door still opens freely.
- A steadier edge on a narrower bed: On a 120cm mattress you tend to use the sides more, so the triple secured border should help you sit or lie near the edge without feeling you might roll off.
- Soft feel for solo side sleepers: The medium soft pillow top suits a lighter adult sleeping alone, letting shoulders and hips sink in, although heavier sleepers may find it too yielding.
- Workable for occasional guests: Two people can share the UK small double for a night or two, which suits a spare room used by visiting couples rather than anyone sleeping there every night.
This size suits you if...
You sleep alone, like a soft cushioned surface and want more space than a single without filling the room, or you're furnishing a compact spare room where a visiting couple stays now and then. It also suits a teenager who has outgrown a single in a bedroom that cannot spare much extra floor.
Consider another size if...
You share the bed every night or your room is under our suggested 2.4m x 2.8m. For nightly sharing, we'd recommend the UK double instead: it gives 67.5cm each, and we suggest at least 2.6m x 2.8m.
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FAQ's
Is the Millbrook Smooth Tech 5000 Pillowtop small double big enough for two people?
For a guest couple staying a night or two, yes, it is workable. For two adults every night, it will feel cramped, especially on a soft pillow top where you naturally settle into the surface. The UK double is a better fit for nightly sharing, giving 67.5cm each, though we suggest a room of at least 2.6m x 2.8m for it.
What room size do I need for a UK small double Millbrook pillowtop mattress?
We suggest allowing at least 2.4m x 2.8m for a UK small double. That leaves space to walk around the bed and open drawers. If you are fitting it into a loft conversion with a sloping ceiling, measure the floor area you can stand in, as sitting up on a soft pillow top beneath a low slope can feel tight.
Should a solo sleeper choose the small double or double Millbrook Smooth Tech 5000?
If your room is snug, the UK small double gives one adult plenty of room while being 15cm narrower than the UK double. Both are the same length. The UK double only makes sense alone if you have the floor space and often share, since it needs at least 2.6m x 2.8m against 2.4m x 2.8m.
What sheets and duvet fit a UK small double Smooth Tech 5000 Pillowtop?
Look for fitted sheets labelled 4ft or UK small double, and a standard double duvet covers it comfortably. The mattress is 32cm deep, so check the pocket depth on any fitted sheet before you buy, as shallow sheets can ping off the corners of a pillowtop.
Is the UK small double Millbrook pillowtop long enough for a tall person?
It measures 6ft 3in long, the same length as the UK double. If you are tall enough that your feet already reach the end of a standard bed, the UK king is 10cm longer, although it is also much wider and needs at least 2.7m x 2.9m of floor.