Poor sleep and constant dreaming may be physiological or pathological. If it is physiological, most of them are caused by the surrounding environment, such as poor sleeping position, heavy blankets, and lack of air circulation in the room, which can cause breathing obstruction and increase dreaming. If it is pathological, it is medically called insomnia. There are many manifestations of insomnia, including excessive dreaming, and other manifestations include difficulty falling asleep, waking up easily at night, and difficulty falling asleep again after waking up. The causes of insomnia are as follows: mental psychological factors, long-term anxiety at night when the brain excitement will be higher than the calm psychological sleep, so it is easy to cause more dreams. 2, the body is in a state of stress, such as suffering a huge psychological and physical shock, the body is in a state of self-defense will cause nerve cell excitement, resulting in excessive dreaming at night.