Silentnight Deep Sleep All Seasons 4.5 + 9 Tog Duvet in Double, King and Super King sizes Enjoy a sound, restful sleep whatever the weather with the Silentnight Deep Sleep All Seasons duvet. It has a clever design consisting of two duvets, offering a trio of combinations to keep you cosy all year round. The 4.5 tog duvet is ideal for the warmer summer months, while the 9 tog duvet is perfect for spring and autumn. Both can be joined together with popper fastenings when it’s extra chilly to create a 13.5 tog duvet that’s wonderfully warm. Generously filled with hollowfibre for soft, lofty comfort, hypoallergenic properties mean it’s suitable for those who suffer with household irritants. Design Type: Plain Filling: Hollowfibre Tog Rating: 13.5 1 Silentnight Deep Sleep All Seasons Duvet, king size 225 x 220cm Offers 3 combinations in one duvet; includes one 4.5 tog duvet & one 9 tog duvet that join together to create a 13.5 tog duvet Features popper fastenings that you can easily attach the duvets together and pull apart Filled with soft hollowfibre to keep you comfortable in every season Hypoallergenic, machine washable at 40°C, encased in a soft polycotton cover for great recovery wash after wash 5 year manufacturer’s guarantee