The condition of lying in bed and feeling a stronger vibration of the heartbeat is mostly seen in patients with hypertension. Because of the elevated blood pressure, the heart contraction is very favorable and it is possible to feel the heartbeat. So pay attention to your usual blood pressure, and if you have elevated blood pressure, you must try to control it to normal. Another condition may be having tachycardia, a faster heart rate, sinus tachycardia, supraventricular tachycardia will feel a stronger heartbeat and a sense of vibration. So when this happens, it is important to do an examination to clarify whether it is caused by high blood pressure or by tachycardia. Of course, there are also physiological, such as more nervous, anxious state lying in bed sometimes also have this feeling, consciously heartbeat is more powerful, is also possible. The above content is for reference only, specific medication and treatment according to the guidance of the doctor interview shall prevail.