RosterRest.io | Global Shift Work & Fatigue Management Calculator

Roster Flip Instructions

Select desired sleep goal
Select time to prepare and commute to work
Select time to commute from work to home or base accommodation
Enter time and date of last shift
Enter time and date of next day shift
Click Plan Transition to see suggested sleep times and plan.

Personal Sleep Goal:

Prep & Commute (To Work):

Commute Home (Travel Only):

Industry Fatigue Guides

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Free Rest Tool

Need help masking daytime noise after a shift? Try a free sleep-sound tool built for shift-worker rest.

RosterRest Sleep Sounds

How RosterRest Plans Around Fatigue

1. Sleep Anchoring: RosterRest works backward from shift start times, commute time, and your selected sleep goal.

2. Roster Flip Logic: The calculator looks at the gap between shifts before suggesting a reset sleep, nap, or normal recovery pattern.

3. Wind-Down Time: Plans allow for a practical buffer after work so you are not expected to fall asleep the moment a shift ends.

4. Sleep Pressure: RosterRest highlights periods where tiredness is more likely to build, especially around night work and short turnarounds.

5. Caffeine Cutoff: Caffeine can remain active for several hours, so RosterRest gives a practical cutoff before planned sleep.

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Legal Disclaimer: RosterRest.io is a fatigue planning tool provided for informational purposes only. Calculations are based on the dates, times, time zone assumptions, commute times, sleep goals, and shift data entered by the user. RosterRest does not automatically adjust for travel across time zones, daylight saving clock changes, flight schedules, local fatigue laws, workplace agreements, or individual medical circumstances. Users remain responsible for checking all outputs against their actual conditions, workplace requirements, and personal health needs. We accept no responsibility for any loss, injury, or fatigue-related incidents.