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.
- Fits compact rooms: At 90cm wide it needs just 2.1m x 2.8m of floor space by our guidance, which leaves room for a desk or wardrobe in a small bedroom.
- Natural fillings for growing sleepers: Hampshire wool and cotton regulate temperature through the seasons, which means a child or teen is less likely to wake up clammy in summer.
- Full spring count in a small size: You get the same 3000 pocket springs as the UK small double, so a lighter solo sleeper still gets support shaped to them rather than a flat surface.
- Edge-to-edge usability: The NemoFlex core supports right to the sides, useful on a narrow 90cm mattress where sleepers tend to end up near the edge.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, the most widely stocked and affordable bedding of any UK size.
This size suits you if...
You're buying for a child's or teenager's room where the bed shares floor space with storage and a desk, you're kitting out a spare room that doubles as an office, or you're a solo adult in a compact bedroom or first flat where a 90cm footprint is all that fits sensibly.
Consider another size if...
You're an adult who spreads out at night, or the bed will occasionally sleep a couple. We'd recommend the UK small double instead: it's 30cm wider, the same length, and we suggest at least 2.4m x 2.8m of floor space for it.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
Is the Millbrook Smooth Tech Luxury 3000 single too deep for a bunk bed?
Possibly. This mattress is 33cm deep, which is more than most bunk, cabin and mid-sleeper frames are designed for: a deep mattress can sit above the safety rail. Measure from the base to the top of the rail and check the frame maker's maximum depth before buying this size for a raised bed.
What room size do I need for the UK single?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single, which covers the 90 x 190cm mattress plus room to walk alongside and make the bed. That's our guidance rather than Millbrook's. In a shared children's room with two singles and a walkway between them, you'll need noticeably more width.
Should I get this Millbrook mattress in a single or a small double?
The UK single suits children, teens and solo sleepers in compact rooms. If you're an adult who wants space to stretch, the UK small double is 30cm wider at the same length, and needs at least 2.4m x 2.8m of floor space by our guidance. The feel and construction are identical, so it's purely a question of room and sleeper size.
Is the UK single big enough for an adult?
At 90cm wide and 190cm long, it works for most solo adults, and it's the standard one-person size in the UK. Taller sleepers should note the 190cm length, and anyone who moves around a lot at night may prefer the UK small double, which adds 30cm of width.
What bedding fits the Millbrook Smooth Tech Luxury 3000 in a single?
Standard UK single sheets and a single duvet, typically 135 x 200cm, fit this size. Because the mattress is 33cm deep, look for fitted sheets labelled deep or extra deep, as standard ones can ping off the corners. A single mattress protector in a deep fit is worth checking for too.