Difficulty in breathing while sleeping has the following situations: 1, young people are mainly common is the sleep posture is not correct, or often is the performance of snoring, also known as snoring. Mainly due to upper airway obstruction, can go to the relevant departments to do sleep breathing monitoring; 2, primary heart, lungs and blood system diseases, such as bronchial asthma is often more frequent at night, or cardiac insufficiency is also predominantly at night. Asthma occurs more often at night because at night time, the vagus nerve tone is elevated, airway contraction caused by. Dyspnea at night due to cardiac insufficiency is aggravated by an increase in cardiac return due to lying down at night, which increases the anterior and posterior loads on the heart. For the latter two cases, the cause of the disease should be targeted treatment to prevent and improve sleep dyspnea; 3, other causes: such as difficulty in falling asleep, etc., you can let psychiatrists and neurologists to give relevant sleep quality improvement measures to correct sleep dyspnea.