Insomnia is the most common sleep-related complaint with a prevalence of 6-18% in the general population. In South India, 18.6% of respondents reported insomnia. Chronic insomnia, if untreated, can have social, economic and occupational impacts on the individual. Insomnia is associated with impaired day-time functioning, reduced Quality of Life, increased risk of morbidity and substantial societal cost. There are multiple placebo controlled trials with results supporting the efficacy of homoeopathic medication in insomnia; still, one systematic review recommended that future trials of homeopathy and insomnia be conducted using adequate and rigorous study designs. In this trial, the investigators intend to assess the efficacy of individualized homoeopathic treatment for insomnia on 60 patients in a double blind, randomized, parallel arm, placebo controlled design in the outpatients of National Institute of Homoeopathy, Salt Lake, Kolkata 700106, West Bengal, India. The patients will be prescribed either individualized homoeopathic medicines or identical placebo, and will be followed up for 3 months. Data will be gathered at baseline and after 3 months using sleep diary and insomnia severity index questionnaire. Randomization will be pharmacy-controlled. Code will be broken at the end of the trial after the database is frozen. The Intention to treat (ITT) population will be subjected to statistical analysis.