In the past, many addiction disorders began because the drugs available to treat these conditions were drugs with addiction potential. Insomnia - common problem. Transient insomnia is very common - usually lasting several days. Short term insomnia lasts less than three weeks.
Chronic insomnia lasts more than three weeks.
Chemical dependency is commonly associated with chronic insomnia as well. Alcohol, other sedatives, narcotics, hallucinogens, and stimulants are the classes of drugs commonly noted. Short term insomnia often leads to chronic insomnia - hence important to intervene with preventative measures. Alcohol is commonly used to facilitate sleep even though it is a common source of insomnia. Hence, any alcohol consumed prior to bed by an alcoholic or nonalcoholic will result in some withdrawal symptoms several hours after the last drink.