What term describes the features needed for the crew's comfort and living conditions?

The term that describes the features needed for the crew's comfort and living conditions is habitability. This encompasses all aspects that contribute to a safe and comfortable living environment aboard a vessel or facility, such as sleeping quarters, sanitation, ventilation, and space for leisure activities. Habitability is crucial for maintaining the physical and psychological well-being of the crew during long deployments.

While the other terms like infrastructure, accommodation, and environmental control are related to living conditions, they do not fully capture the comprehensive nature of what habitability entails. Infrastructure refers more broadly to the foundational facilities and systems that support operations, accommodation focuses specifically on the sleeping and resting spaces, and environmental control relates specifically to temperature, humidity, and air quality rather than the overall living experience. Thus, habitability is the most encompassing term regarding crew comfort and living conditions.