Whether or not a TB patient needs to wear a mask when sleeping depends on the patient’s clinical symptoms and which stage of treatment he or she is in, whether he or she lives alone, etc. If the patient is in the intensive phase of treatment, accompanied by coughing, coughing up sputum, blood in sputum, hot flashes, night sweats and so on. Especially when the sputum check is positive for antacid bacilli, it is more contagious at this time, and needs to be given active standardized anti-tuberculosis treatment, which is contagious within two months. If you are not living alone, with family members or coworkers, you can consider wearing a mask when you sleep to avoid cross-infection. If you live alone, the air is more circulated, and in the consolidation period of treatment, at this time the contagiousness is lower, you can consider not wearing a mask. However, you need to pay attention to ventilation and air exchange to minimize unnecessary infections that can bring trouble to your family and colleagues.