1. A subjunctive phrase expressing a wish, command, or condition that someone remains in a state of wakefulness
I hope that you stay awake during the entire presentation.
Espero que você permaneça acordado durante toda a apresentação.
2. Used in formal or literary contexts to express a desire or requirement for sustained consciousness
The doctor insisted that you stay awake for the next few hours.
O médico insistiu que você permaneça acordado pelas próximas horas.