In the biblical context, demons are considered malevolent spiritual beings, often associated with Satan or the devil. They are portrayed as fallen angels who rebelled against God and now seek to do evil and deceive humans. The Bible does not specifically address the concept of demons having power within dreams at night, as dreams are generally understood to be a natural part of human subconscious experiences.
Dreams, according to biblical accounts, can be a means through which God communicates with individuals (e.g., through prophetic dreams or visions), and they can also be influenced by various psychological and emotional factors. However, there is no scriptural evidence to suggest that demons gain any special power or control over individuals within their dreams specifically.
The Bible does warn against engaging in practices such as divination, sorcery, or seeking guidance from spirits, as these are considered sinful and could open doors to negative spiritual influences. But again, the biblical text does not speak directly to demons exerting power through dreams.
It is important to remember that interpretations of religious texts and beliefs can vary among different religious traditions and individual believers. As with any theological or spiritual matter, it's best to refer to specific religious authorities or texts for a more detailed and nuanced understanding of a particular faith's teachings on this topic.