Sealy Balance has been cleverly designed to help you become a deeper sleeper by combining technology with comfort. The cover of the duvet is made with a beautifully soft microfibre that features carbon fibres. Carbon is proven to help reduce the electrostatic charge that builds up on your body during the day which is usually caused by blue light technology. These clever carbon fibres help to reduce this electrostatic charge, helping you to feel balanced and relaxed whilst you sleep. The duvet is filled with DuPont™ Serica® fibres that imitate the natural qualities of silk. Serica® is wonderfully soft and smooth to the touch, which results in a duvet that cocoons around your body and keeps you relaxed and comfortable throughout the night. The 13.5 tog Sealy Response duvet is ideal to use in the cooler seasons. The duvet is lightweight, but warm which means it will actively work to keep you at just the right temperature during the night. Our body temperature starts to fall as bed time approaches and retaining a cool temperature through the night will help you to feel more comfortable and stay asleep for longer. This is why tog using the right tog for the right season is so important. Tog ratings help to give an indication of how warm the duvet will be when you are sleeping underneath it, so the higher the tog rating, the warmer you will be. We recommend a low tog for warmer summer months (4.5/7.5 tog) and a higher tog for winter months (13.5/15 tog). Or a 10.5 tog is most suitable for all year round use. However, for optimum sleep you should keep your body at a comfortable temperature and changing togs during seasons will help you to achieve this. The Sealy Balance duvet comes with a five year manufacturer\'s guarantee for peace of mind. The duvet is hypoallergenic which means it does not contain any materials that are likely to cause allergies. It is also machine washable at 40°C to help your duvet feel just like new for longer. The Sealy Balance collection also includes pillows, toppers and protectors to help you feel balanced, relaxed and comfortable while you sleep. Sealy is the world\'s number one bed brand. With a wealth of experience, we are committed to helping everyone enjoy the beauty of quality sleep.