The dream category "nil" refers to dreams where the dreamer recalls experiencing no dream at all. It is characterized by a complete absence of any meaningful or memorable dream content. In these dreams, the dreamer may feel as though they were simply "skipping" the dreaming phase during their sleep. Despite this lack of recollection, the dreamer may still have a sense of having slept, a feeling of rest or fatigue upon waking. While the reasons for experiencing a "nil" dream remain largely unclear, it is believed to be a normal occurrence and can happen to anyone from time to time.
