Crew rest refers to the designated time that airline crew members, such as pilots and flight attendants, are required to take breaks between flights. This rest period is essential for ensuring that crew members are well-rested and alert, which helps maintain safety during operations. Regulations often dictate the minimum rest time based on flight duration and time zones crossed. During crew rest, flight crews may sleep, eat, or engage in leisure activities to recharge. Proper rest is crucial for reducing fatigue, enhancing performance, and ensuring compliance with aviation safety standards. Airlines must adhere to these regulations to promote the well-being of their crew and passengers.