Glossary entry (derived from question below)
Polish term or phrase:
Do pracy należy przystąpić trzeźwym i wypoczętym.
English translation:
set to work when you're sober and well-rested
- The asker opted for community grading. The question was closed on 2016-09-30 04:54:17 based on peer agreement (or, if there were too few peer comments, asker preference.)
Polish term
Do pracy należy przystąpić trzeźwym i wypoczętym.
Non-PRO (1): Ewa Dabrowska
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Proposed translations
set to work when you're sober and well-rested
United States
On time, on target, on budget.
Native in: English 
, Polish
Works in: Polish to English, English to Polish, Russian to Polish, and 1 more.
one should commence work when fully alert and well-rested
report for work sober, rested and fit for duty
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to report for work rested and fit for duty - https://goo.gl/EU2Zb2
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rules which require pilots to report for duty rested, sober and mentally fit.
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Note added at 19 hrs (2016-09-27 02:21:18 GMT)
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UPS pilots have an obligation to report to work rested and fit for duty – or remove themselves from duty if they aren't.
Discussion
Chyba tak: w polskich realiach trzeźwość = brak alkoholu w organizmie.
Jesteś trzeźwy? = Czy piłeś na tyle dawno, że już wytrzeźwiałeś?
;-)
O ile wiem, pojęcie "trzeźwość" łączy się tylko z niekonsumowaniem alkoholu, więc "or..." wydaje mi się zbędne.