While each person may experience different difficulties when it comes to insomnia, the most common signs are:
Difficulty falling asleep
Waking up constantly in the middle of the night
Waking up too early and not being able to go back to sleep
Not feeling well-rested after a night's sleep
Feeling tired/fatigued throughout the day
Feeling irritable, anxious, or having a depressed mood
Increase in committing errors or accidents throughout the day
Issues with concentration or memory