Slumberdown White Wonderful Wool 550Gsm Heavy Duvets in Size Double, Sports Direct. This Slumberdown Wonderful Wool heavyweight duvet is filled with 100% British wool. Wool fibres act like a spring, meaning they can continuously resist pressure and flattening and still bounce back, which makes wool a perfect filling for duvets. Wool fibre is incredibly complex and made up of lots of different layers which create pockets that trap air and help to circulate heat, enhancing insulation and warmth. It absorbs the sweat we produce during the night, then releases it when the atmosphere is dry, keeping skin dry and comfortable. As well as this, wool breathes naturally and constantly adjusts to external conditions, which helps to regulate temperature and ensure comfort. All these characteristics make this Wonderful Wool duvet from Slumberdown a great choice for all seasons. To enhance the effects of this impressive filling, the Wonderful Wool duvet has a 100% cotton cover. Also naturally breathable, the cotton ensures that the benefits of the wool filling are not lost – working harmoniously together to deliver an optimum sleep environment for you all year round. Choose this heavyweight Wonderful Wool duvet if you prefer a duvet with a higher weight and level of warmth – similar to 10-12 togs. BETTER FOR SLEEP: sleeping under a wool filled duvet is scientifically proven to give you 25% better REM sleep. If you need a good nights sleep but struggle with night sweats, hot weather or maybe the menopause then this quilt is perfect for you. HYPOALLERGENIC: with no added chemicals this quilted wool blanket actively repels dust mites, mould spores and bacteria - the cause of so many allergy symptoms. It is also naturally odour resistant and fire retardant. THERMO-REGULATING: sheep wool is 50% better than any other fibre at wicking away moisture caused by overheating. Wool can create a personal ‘microclimate’, circulating air around each sleeper, to keep you warm (or cool) and comfortably dry. The 'wool effect' is further enhanced with a breathable 100% cotton cover. MADE IN THE UK: manufactured in Yorkshire by a family business with over 100 years experience in bedding.Looking for alternatives to stores like JD Sports, eBay, SHEIN, ASOS, Next, Best Choice UK, Very, Decathlon UK, Argos, schuh, Temu, BuyBetter, or Nike Official? Discover our unique selection.