Sleeping gasping for air and almost suffocating may be related to mental psychological factors, but also may be caused by sleep apnea syndrome, acute attacks of bronchial asthma, cardiogenic diseases and other reasons. 1. Spiritual psychological factors: some people in the spirit of too much tension is prone to a sense of suffocation, such as in the evening before going to bed by stressful events stimulation, resulting in mental tension, anxiety, may cause sleep gasping for breath almost suffocation. 2. Sleep Apnea Syndrome: This disease can cause patients to always snore in the process of sleeping, while snoring is easy to cause sleep apnea, when sleep apnea is relatively long time easy to be suffocated, will feel sleep gasping for breath almost suffocated. 3. Acute attack of bronchial asthma: the disease is a chronic inflammatory response of the airway, which can lead to a decline in lung function, easy to appear airflow obstruction, resulting in chest tightness, shortness of breath, wheezing and other symptoms. Especially at night when you sleep, because the body is lying down, it is more likely to appear the phenomenon of breath-holding, it may appear to sleep gasping almost suffocation. 4. cardiac diseases: for example, acute myocardial ischemia, heart failure and other pathologies, may lead to sleep gasping for air, almost suffocated, and in serious cases, life-threatening. Sleeping gasping for air almost suffocated, but also for other reasons, if there are other symptoms, it is recommended to seek medical attention as soon as possible, after diagnosing the cause, by the doctor’s guidance for treatment.