John Lewis Natural Collection British Wool Mattress Topper

For those who want to avoid synthetic foam, this John Lewis topper uses 100% British wool inside a 100% cotton cover, handcrafted in Lancashire. Wool naturally regulates temperature and wicks moisture, so it suits sleepers who overheat under memory foam, and it is naturally breathable and resistant to dust mites. At around £110 for a king (indicative) it is fairly priced for a natural product, with an elasticated fit for mattresses up to 36cm deep and a 2-year guarantee. It ranks fifth because a wool fleece adds a comfortable, breathable layer rather than the deep pressure relief of foam or the responsive support of springs, and it needs more careful cleaning than a machine-washable fibre topper. Choose it over the foam picks specifically for natural materials and cooler, more breathable sleep.