Using this duvet is easy. Just put it on your super king-sized bed and enjoy a cozy night's sleep. During Autumn, Spring, and Winter, it will keep you warm and comfortable. When it comes to care, you can have it dry - cleaned to maintain its quality. Avoid using harsh chemicals or bleach as it may damage the down and the fabric. Also, make sure to store it in a dry and well - ventilated place. If you notice any clumping of the down, gently shake the duvet to redistribute it. With proper care, this duvet will serve you well for many years thanks to its 10 - year guarantee.