Turning around in bed for the whole night, falling asleep right before the sunrise, waking up not well-rested, but rather exhausted. Sounds familiar? Insomnia can be a symptom of many different illnesses, but a healthy person can experience it as well. Insomnia mostly develops due to disturbed falling asleep in the evening, early wake-up time in the morning, or not deep enough sleep at night. A relatively healthy person can get insomnia due to a nervous over excitement, stress, or prolonged high physical activity. Full story