Final answer:
Waking up too early without an alarm is the most concerning symptom for insomnia in an adult patient.
Step-by-step explanation:
Waking up too early without an alarm is the most concerning symptom for insomnia in an adult patient. Insomnia is a sleep disorder characterized by difficulty falling asleep, staying asleep, or waking up too early. While snoring, morning caffeine consumption, and sleeping eight hours per night can be indicative of sleep issues, waking up too early without an alarm is a more direct symptom of insomnia.
Learn more about Symptoms of insomnia