Silentnight Rest Assured Milldale 3000 Pocket Wool Single Mattress - Firmer
The Milldale 3000 is a pocket spring mattress from Silentnight's Rest Assured range, built around 2000 zoned pocket springs plus 1000 mini springs, which means support that adjusts to different parts of your body rather than pushing back evenly everywhere.
- Natural fibres keep you cooler
- Firm, zoned support at the hips
- 60-night trial & 5-year guarantee
£680
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Silentnight Rest Assured Milldale 3000 Pocket Wool Mattress - Firmer
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Mattress details
Mattress
Silentnight Rest Assured Milldale 3000 Pocket Wool Mattress - Firmer
Size
Firmness
Firm
Construction
Pocket Spring
Wool
Depth (cm)
33
Layers
4
Layer Details
Pillowtop
A tufted pillowtop filled with layers of British wool sits on top, which means a slightly cushioned surface even on this firmer version. Tufting holds the fillings in place so they're less likely to shift or settle unevenly over time.
Silk, wool, cashmere and alpaca layer
Beneath the pillowtop is a blend of silk, wool, cashmere and alpaca. These natural fibres breathe and wick moisture, so the mattress stays comfortable and temperature-neutral through the night.
Sustainable fresh fibres
British wool is layered here with sustainable fresh fibres. This adds depth to the comfort layers while keeping the fillings natural rather than synthetic.
Pocket spring system
The base holds 2000 zoned pocket springs with an additional 1000 mini springs. Zoning means firmer support where your body is heaviest, typically around the hips, while the mini springs add a finer layer of responsiveness closer to the surface.
Layer details from silentnight.co.uk product page, September 2026.
Key benefits
- Fits where space is tight: At 90cm wide, it leaves room for a wardrobe, desk and toy storage in a child's bedroom, or two beds plus a walkway where siblings share.
- Firm support for growing sleepers: The firmer feel and zoned pocket springs give steady support for children and teens, whose beds often need to last them several years.
- Allergy UK approved: A genuine reassurance in a child's room, where dust mite sensitivity often shows up first.
- Breathable natural fillings: British wool, silk, cashmere and alpaca wick moisture, which means a teenager who runs hot should sleep cooler than on a foam single.
- Guest-ready without compromise: In a spare room that doubles as an office, the UK single keeps the desk usable while still offering visitors a properly supportive mattress.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm duvet fit, and both are the most widely stocked bedding of any UK size.
This size suits you if...
You're buying for a child or teenager and want a mattress that supports them properly for years rather than a budget stopgap, you sleep alone and your room can't take anything wider than 90cm, or you're kitting out a guest room and want visitors on something better than the usual thin spare-bed mattress.
Consider another size if...
You're an adult who moves around in the night or shares the bed even occasionally, as 90cm is snug for one restless sleeper. We'd recommend the UK double instead, which is 45cm wider and the same length; allow at least 2.6m x 2.8m for it.
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FAQ's
What are the dimensions of the Milldale 3000 UK single?
The UK single measures 90 x 190cm, which is 3ft x 6ft 3in. It's the standard one-person size in the UK, so it fits ordinary single bed frames, divans and slatted bases without any sizing surprises.
Is the Milldale 3000 single a good choice for a child's room?
It's a strong fit. The firm, zoned support suits a growing sleeper, and Allergy UK approval matters in rooms where dust mites tend to cause trouble. At 90cm wide it leaves floor space for a desk and storage; we suggest a room of at least 2.1m x 2.8m.
Will the Milldale 3000 single work on a bunk or mid sleeper?
The 90 x 190cm footprint matches standard bunk and mid sleeper frames, but this mattress is 32.5cm deep with a pillowtop, which is taller than many raised frames allow. Check your frame's maximum mattress depth and guard rail height before buying; a slimmer mattress is often the safer choice for a top bunk.
What room size do I need for a UK single?
We suggest at least 2.1m x 2.8m of floor space. That gives you room to walk alongside the bed and open drawers or a wardrobe. In a loft conversion, the narrow 90cm width also makes it easier to tuck the bed under a sloped ceiling.
How much smaller is the UK single than the UK double?
The UK single is 45cm narrower than the UK double, and the two are the same length. That extra width is the difference between a bed for one and a bed that can take a couple, so if there's any chance of sharing, the UK double is the safer buy.