Dreaming often refers to dreaming or dreaming a lot during sleep, simple dreaming will cause fatigue, mood depression, etc., while long-term nightmares will seriously affect the quality of sleep, the need to analyze the causes and make targeted treatment. From a scientific point of view, dreams are a kind of mood generated by the sum of various information fragments stored in our body and brain during sleep. Dreams, in fact, are a normal physiological phenomenon during sleep, and everyone has dreams, but there are more and less of them, and some of them are still fresh in their memory after waking up, while some of them cannot remember. Some people have dreams at night but they do not affect their work life during the day. Research in sleep physiology shows that sleep is not a calm process, but consists of a series of sleep cycles. Human sleep is mainly divided into rapid eye movement sleep and non-rapid eye movement sleep. During a full night of sleep, there is a cycle from non-REM sleep to REM sleep, approximately every 90-100 minutes, with alternating intervals of 5-6 cycles per night. During sleep, we regain strength in non-REM sleep and energy and memory in REM sleep. During REM sleep, our cerebral metabolism and cerebral blood flow increase, sensory function decreases significantly, muscles relax, and eyes move rapidly, and dreams occur mostly during this period. Whether from the general pattern of human sleep or from the results of experimental studies, dreaming sensation and insomnia may not be necessarily related. The dreaminess and the degree of dreaminess cannot be taken as objective evidence of insomnia or not and the degree of insomnia. The possible reasons for self-conscious dreaminess are as follows: 1. The quality of sleep at night is still good, and it happens to be in rapid eye movement sleep before waking up in the morning; 2. The poor quality of sleep at night, the lack of deep sleep, and frequent waking up in the middle of sleep make the dreams that occur in the middle of sleep memorable. In order to sleep more solidly and dream less or not, the following measures are recommended: 1. Avoid intake of substances that affect sleep, such as tobacco, alcohol, coffee, tea or certain drugs; 2. Set the right attitude towards dreaming; 3. Ensure sufficient deep sleep time. If the dream is a nightmare, you need to feel out the emotions brought to you in the dream, associate it with what happened in reality, express your emotions at that time, and if necessary, have psychological counseling and medication. Therefore, excessive dreaming is actually a manifestation of sleep disorder, which requires objective analysis of the cause and targeted management.