Working tool
Build a protected main sleep window and optional pre-shift nap around a casino roster, commuting time, and preparation needs.
Treat the main sleep window as protected time. Account for actual overtime, table closure, handover, transport delay, household noise, and the time needed to become alert after waking.
A planned nap may add sleep before the shift, but the planner removes it when the available interval is too tight to preserve a separate main sleep window and preparation period.
This tool arranges time; it does not diagnose insomnia, shift-work disorder, or fitness to drive. NIOSH advises night workers to protect as much sleep as possible and notes that planned naps can support alertness. Persistent sleep difficulty or unsafe fatigue deserves professional assessment.
Never use a calculated schedule as proof that driving or working is safe. If you are severely sleepy, follow local safety procedures and arrange a safer alternative.
Read the full night-shift survival guide for light, caffeine, commuting, food, family boundaries, and fatigue reporting.
Transparent methodology
The planner places commute-home and wind-down time after the entered shift, then fits the sleep target before pre-shift preparation and the return commute. If a requested nap cannot fit while preserving a separate main sleep window, the nap is removed.
The result tells you whether the schedule you entered contains enough time for your own sleep target and shows any shortfall in minutes.
It cannot diagnose a sleep disorder, measure sleep quality, determine fitness to drive, or prove that a roster is medically safe.
If your target is 7.5 hours but the usable window fits only 6.5 hours, the tool reports a 60-minute shortfall rather than calling the roster safe or unsafe.