An afternoon nap is a short period of rest taken during the early evening, typically between midday and nighttime. It's often seen as an opportunity to recharge one's energy levels after lunch or to catch up on sleep lost from the previous night. The duration of an afternoon nap can vary, but it usually lasts for around 30 minutes to a couple of hours. Taking an afternoon nap is common in many cultures and is often seen as a way to improve productivity, mood, and overall well-being.