The common reasons for sleeping with an uncomfortable heart are as follows: 1. It may be that sleeping with pressure on the chest cavity causes discomfort in the precordial area, this situation can be adjusted by sleeping position, without the need for medication, in addition, it is recommended to sleep on the right side, because the heart is on the left, if the left side of the sleep position, it is easier to press the heart. 2. It may also be related to heart disease, when the patient has chest discomfort, especially at the time of sleep, you need to The last situation is that the overwork during the day leads to sleepless nights and poor rest, which leads to heart discomfort, it is recommended to relax and not to give yourself too much pressure, the symptoms of chest tightness will naturally be better.