Spundown Range: The 9 + 4.5 tog duvet king size is thoughtfully designed with our Smartfil fibre, providing softness and comfort that lasts. Sourced from recycled PET bottles, you can support sustainable choices for a better night's sleep. Designed for All Seasons: A lightweight bed duvet is perfect for warmer nights, colder nights, and those in-between. The 4.5 tog can be used for summer, the 9 for autumn and spring, and you can clip them both together for a 13.5 tog for winter. Ultra-Washable & Practical: This king size duvet 4.5 tog + 9 tog can be home washed at dust-mite busting 60°C and tumble dried quickly, keeping it fresh, hygienic and luxuriously soft so it feels like new after every single wash. Hotel Quality at Home: Crafted to exceptional standards, this hotel quality duvet blends indulgence with practicality, ensuring you enjoy the comfort, durability and luxury finish of hotel bedding night after night. Innovative Technology: Featuring Smartfil fibres for shape retention, this king size quilt 4.5 tog + 9 tog is hypoallergenic, resilient and washable, making it a dependable choice for allergy sufferers who want freshness and long-lasting comfort. Eco Excellence: Proudly B Corp certified and pioneering bedding for over 100 years in Britain, this duvet single 13.5 tog is crafted in our European eco-factory, combining sustainability, heritage and premium comfort you can rely on.