OBJECTIVES: Sleep disorders are a widespread, persistent problem among alcohol-dependent patients and have been implicated in an increased risk for alcohol relapse. The melatonin-agonist agomelatine has been shown to improve overall sleep quality without daytime sedation. METHODS: In an off-label therapeutic setting, 9 alcohol-dependent patients with chronic sleep disorders received nightly doses of between 25 and 50 mg of agomelatine. RESULTS: After 6 weeks of agomelatine treatment, the Pittsburgh Sleep Quality Index global score for all patients had decreased significantly from a mean (SD) of 13.1 (1.7) to 7.8 (1.7) (t = 12.8; P = 0.00). CONCLUSIONS: Agomelatine is a preparation that is not prone to abuse. The current pilot investigation shows that agomelatine might offer the prospect of becoming a valuable addition to the pharmacological repertoire for the treatment of alcohol-dependence-associated insomnia.