The causes of coughing in bed for newborns are generally colds and maladjustment to the environment, as follows: 1. Colds: Babies with cold colds will have coughing symptoms, accompanied by fever, sneezing, runny nose and other symptoms. Due to nasal congestion there will also be symptoms of open-mouth breathing during sleep, and there will also be a reduction in milk consumption, poor mental state, crying and other symptoms. It is recommended that parents strengthen the baby’s daily care to minimize the symptoms of the cold to promote recovery as soon as possible. 2. Discomfort with the environment: If the baby lives in a dusty indoor environment, with strong irritating odors, or indoor too dry, etc., resulting in respiratory discomfort and coughing. Parents are advised to create a clean, comfortable and warm sleeping environment for their babies in order to promote their normal growth and development.