Do you have rapid eye movement when your in deep sleep?

No, rapid eye movement (REM) sleep typically occurs during lighter stages of sleep, not deep sleep. Deep sleep, also known as slow-wave sleep, is characterized by low brain activity and is crucial for physical restoration and growth. REM sleep, on the other hand, is associated with vivid dreaming and heightened brain activity. Thus, while both REM and deep sleep are essential for overall rest, they are distinct stages with different characteristics.