Insomnia is a symptom, not a disorder. If you experience difficulty falling asleep or staying asleep you are suffering from insomnia. Insomnia may last for days (transient), weeks (short-term) or months (chronic). If you suffer from insomnia you should consult your physician for treatment. Sleep medication is generally considered a short-term solution. Chronic insomnia always requires a sleep consultation to identify all the potential causes.