A doze, often referred to as a nap, is a short period of sleep that typically lasts from a few minutes to about an hour. Napping can help refresh the mind and body, improving alertness and performance. It is commonly practiced in various cultures and can be beneficial for individuals who may not get enough sleep at night. Naps can be categorized into different types, such as power naps, which last around 20 minutes, and longer naps that may last up to 90 minutes, allowing for a full sleep cycle. Research suggests that napping can enhance cognitive function and mood, making it a valuable practice for many people, including students and workers.