Insomnia symptoms refer to the various signs and indicators of insomnia, which is a common sleep disorder characterized by difficulty falling asleep, staying asleep, or waking up too early and not being able to fall back asleep. Insomnia symptoms can include difficulty falling asleep, waking up frequently during the night, waking up too early in the morning, feeling tired or not well-rested upon waking, irritability, difficulty concentrating, and experiencing daytime fatigue. These symptoms can significantly impact an individual's overall quality of life and may require treatment to improve sleep patterns and overall well-being.