The film "Half Awake" denotes the struggle family and medical personnel face with a vegetative patient.
That the main character whom is the patient is a child, marks the innocence the patient holds in that state; completely dependant upon those around them. They are helpless to their decisions and actions.
Commonly, as such, medical euthanasia comes into play. The question, in some cases, "When will they awaken?" becomes, "Will they wake up?"
As such, there are other things for them to weigh up: if they never wake up, how many other patients will be unable to receive treatment if the equipment and bed are taken by what is in effect a living corpse. Further, those in relation to the vegetative patient can suffer from emotionally and may incur mental health issues when the situation is prolonged interminably.
However, when a patient cannot survive off of life support, or brain activity can no longer be detected, there is a possibility to turn off the machines. But only with the patient's immediate family or guardian's consent.
This is what occurs in "Half Awake". The doctor explains it to the parents; they are saddened but give consent.
Meanwhile, there is the internal struggle of Emily. She seeks solace and a sanctuary from what has presumably put her into the state she is in. However, noises from the hospital and her trauma keep catching up to her.
Finally, she overcomes it, and is about to exit her dream. Simultaneously, the doctor is reaching for the kill [off] switch.
Here it ends, the answer unclear. It is for the viewer to decide whether or not she wakes up.
Did she? Or didn't she?