If you have trouble falling or staying asleep, or you wake up feeling unrefreshed, you may be suffering from insomnia. Insomnia is a symptom. It may be caused by stress, anxiety, depression, disease, pain, medications, sleep disorders or poor sleep habits. Your sleep environment and health habits may also play a role in your sleep problems.
Some medications can lead to insomnia as well.
Some common sleep disorders can also cause poor sleep. Insomnia may be experienced for a few days, for two to three weeks, or it may be chronic , lasting for three weeks or more. Chronic insomnia is more difficult to treat, and doesn't go away on its own. You may need to see a physician or sleep specialist. Many people experience insomnia, particularly women before and at the onset of the menstrual cycle, during pregnancy and menopause.