According to the National Library of Medicine, insomnia involves regular difficulty sleeping and staying asleep. This includes needing a long time to fall asleep, sleeping restlessly and waking up often, and/or waking up in the middle of the night and not being able to fall back to sleep. Insomnia does not necessarily mean that you cannot sleep at all, but that you are not getting enough rest while you sleep. If you have three or more bad night's sleep per week for a month or more, you may have chronic insomnia.
Things that can make it difficult to sleep include:
Anxiety and stress
Alcohol and drugs
Pain, needing to urinate at night, or hot flashes
Grinding your teeth (bruxism)
It can be helpful to talk with your doctor to rule out medical causes for insomnia. It can also help to talk with a therapist to help address underlying anxiety and stress that may be contributing to your difficulty sleeping, and/or to address anxiety and stress regarding the insomnia itself. Cognitive Behavioral Therapy and relaxation techniques can help to treat insomnia.