Firmness
Medium Firm
Type
Pocket Spring
Depth (cm)
25
Number of Layers
3
Trial Period (nights)
100
Warranty (years)
10
Price Range
£314 to £578
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
This mattress makes sense if you want natural materials at a sensible price. The Hampshire wool and cotton fillings breathe well, which means you're less likely to overheat than on synthetic foam, and wool helps regulate temperature across the seasons. The 1000 pocket springs each move independently, so your partner's tossing and turning is less likely to disturb you. Hand-tufting keeps the fillings anchored, which reduces sagging over time, and the mattress is approved by the National Bed Federation and conforms to BS7177: 2008 for fire resistance. Mattress Online lists a 10-year warranty and a 100-night trial, the retailer's own terms rather than Millbrook's, but a genuine safety net all the same.
Key Features & what's inside
- Cover. A soft-touch cotton-viscose cover infused with M-Pure, a 100% plant-based, sustainable treatment. This gives a breathable sleeping surface rather than a synthetic one.
- Comfort fillings. Layers of 100% fleece wool sourced from Hampshire, blended with layers of cotton and hand-tufted. Tufting anchors the fillings in place, which means less shifting and settling over the years.
- Support system. 1000 individual hand-nested pocket springs, each encased in cloth pockets. Because each spring moves on its own, the mattress responds to your shape and limits motion transfer between partners.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
If you prefer the slow, cradling sink of memory foam, this traditional sprung feel will seem quite different, and firmer. Lightweight side sleepers may find medium to firm a little unforgiving on shoulders and hips. And if a new-mattress smell bothers you, some owners mention a temporary wool-like odour at first.
Millbrook Wool Luxury 1000 Pocket Mattress
Across 675 reviews on the mattressonline.co.uk product page, rated 4.6 out of 5, owners report very comfortable sleep with medium-firm support, firm edge stability and good material quality. Some mention a temporary wool-like odour, and there is a discrepancy over sidedness: the listing calls it double-sided while one reviewer describes it as single-sided.
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How firm is the Millbrook Wool Luxury 1000 Pocket mattress?
Millbrook's listing describes it as medium to firm. That suits most back and stomach sleepers, although lightweight side sleepers may find it slightly too firm for pressure relief at the shoulder and hip.
Does the Millbrook Wool Luxury 1000 come with a trial period?
Mattress Online, the retailer currently listing it, offers a 100-night trial. This is the retailer's own offer rather than a Millbrook guarantee, so terms may differ if you buy elsewhere.
What is the Millbrook Wool Luxury 1000 made of?
It combines 100% fleece wool sourced from Hampshire with cotton fillings, hand-tufted over 1000 hand-nested pocket springs, all under a cotton-viscose cover with a plant-based M-Pure treatment. The mattress is 25cm deep and handcrafted in the UK.
Is there a warranty on the Millbrook Wool Luxury 1000?
Mattress Online lists a 10-year guarantee on this mattress. As with the trial, that's the retailer's stated term, so check the cover offered wherever you buy.
What sizes does the Millbrook Wool Luxury 1000 come in?
Six UK sizes: Small Single, Single, Small Double, Double, King and Super King. Prices range from £314 to £578 depending on the size you choose.
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