Combinations: Can be used in three combinations; 4.5tog, 10.5tog or 15tog. Duvet: Get a Silentnight all seasons duvet in 10.5 and 4.5 combination tog! Material: Soft, hypoallergenic hollowfibre filling with a microfibre cover with stylish grey trim. Poppers: Use the poppers to create your ideal tog, to keep you warm in all seasons! Sizes: Choose single, double, king or super king sizes. Easy-care: Machine washable and at 40°C. Silentnight All Seasons Tog Duvet | Grey | Living Social