The phrase "remained awake for" is grammatically correct and can be used in written English.
It is typically used to describe someone staying awake for a specific reason or purpose. Example: She remained awake for hours, waiting for her husband to return from his business trip.
This meant they had the energy to get home and they remained awake for the workshop.
Unknowingly, he had mostly remained awake for 24-hour periods before sleeping.
I fell asleep again and woke up, fell asleep again and woke up, fell asleep a fourth time and then remained awake for nearly an hour.
Flamel remained awake for his surgery, and as he lay on the hospital table his brain was picked apart, its information transferred to a computer one neural connection at a time.
Mice who remained awake for 20 hours a day for 3 weeks developed more amyloid plaques than their well-rested peers, the researchers found.
The final, fourth group remained awake for the entire duration of the experiment (see Figure 2 for Experimental Design).
They all have to remain awake for 30 days in a row in a tank filled with toxic gas.
If the type of surgery permits, patients may be able to help prevent some mistakes by having epidural or other types of regional anesthesia, so they can remain awake for their operations.
Competitors had to remain awake for 48 hours in a Big Brother-style room, before undergoing six hours of tests, which involved consecutive bursts of 30 minutes of sleep and 30 minutes of completing a mundane vigilance test online.
If you're a die-hard Groundhog Day fan, you'll want to set your alarm for 6 40 AM - that's when the first showing is due to begin - and be prepared to remain awake for quite some time; the final airing is due to finish a whole 24 hours later.
Yet with careful rationing of its stored energy, it should be possible to achieve the closest thing yet to perpetual manned flight with man being the limiting factor because of the need to carry food and drink, and to remain awake for long periods.If the prototype succeeds in flying through the night then the design of its successor will be finalised.
