144 Thread Count Organic Cotton Duvet Cover Set Organic cotton gives a soft, natural texture without chemicals and contributes to a more natural sleep. It keeps the temperature evenly and allows you to circulate the air through the fibers, does not retain moisture and ensures a cool sleeping experience on new sheets. No insecticides, pesticides or chemical fertilisers are used when growing organic cotton. In addition to its ecological benefits, it is a highly recommended material for people with dermatological problems such as atopic dermatitis. The number of threads informs us how many threads a fabric has in a square inch. The higher the thread count, the denser and more resistant the fabric. Wash. Max. 30 °C. Do not bleach. Tumble dry low. Iron at max. 150°C, do not dry clean.