Baby wakes up feeling congested every time may be caused by a variety of factors such as rhinitis, colds, sinusitis and so on. 1. Rhinitis: Rhinitis includes acute rhinitis, chronic rhinitis, allergic rhinitis and other types. The mucous membrane of the nasal cavity will become congested and edematous under the stimulation of inflammation, which will lead to the narrowing of the nasal ducts and make the symptoms of nasal congestion appear. 2. Cold and flu: when pathogenic microorganisms such as bacteria or viruses enter into the nasal cavity, they will attack the mucous membrane and other tissues of the nasal cavity, thus causing symptoms of nasal congestion. 3. Sinusitis: when the sinus tissues are infected by bacteria, viruses and other infections, it will cause the sinus tissues to produce congestion, edema and other inflammatory reactions, which will lead to the narrowing of the nasal cavity and the symptoms of nasal congestion. Because there are many reasons that cause babies to wake up with nasal congestion, in order to identify the specific causes, it is recommended to go to the hospital in time for consultation and examination.