What does a layover refer to for crew members?

A layover for crew members refers specifically to the time spent between duty periods at a hotel away from their regular place of work, known as domicile. This time is crucial for crew members as it allows for rest and recovery between flights. During a layover, flight attendants may have the opportunity to unwind, sleep, and prepare for their next scheduled duty, ensuring they maintain alertness and effectiveness in their roles.

The other options do not accurately capture this concept. While preparing for flight and time spent at the airport are important parts of a flight crew's responsibilities, they do not encapsulate the essence of a layover that occurs at a hotel during extended work schedules. Additionally, the time taken for refueling pertains to the operational aspects of the aircraft rather than the crew's designated rest time.