What it means in plain language
ALOS is the quiet metric that controls labor cost, turnover, and how aggressively you can stretch a peak night. A property with ALOS 1.4 burns housekeeping; one with ALOS 3.6 has fewer arrivals to manage and predictable F&B. Push ALOS upward via min-stay restrictions on compression nights instead of discounting.
How ALOS fits in the bigger picture
ALOS doesn't live alone - it sits inside the Metrics & KPIs category and connects to 3 closely related concepts most working revenue managers track in the same breath. Pair this definition with the related terms below to build a working mental model - definitions in isolation are easy to memorize and easy to misuse.
Related terms you should also know
Each of these is one click away - start with whichever you don't already use daily: