The dialogue makes it clear that it will take 4 days to cross the anomalous zone, and though the crew will be in induced comas to avoid brain damage, there is no mention of keeping them hydrated, nor is there any sign of related equipment, i.e. an IV system. The average human can only live for 3 days without water, thus the crew would die before they traversed the zone.
Besides the lack of hydration, the lack of movement wasn't addressed. A person laying in the position for 24 will see the beginnings of skin breakdown. Otherwise known as decubitus ulcers or pressure sores. This is a major problem in hospitals and extended care facilities when dealing with people unable or unwilling to move. Four days would be very bad for their skin, especially at the pressure points on the back of the head, the shoulders, hips and heels of the feet.
Nothing was mentioned about elimination either. Bowels and bladder's would not stop functioning.