Preconditions like weight gain, obesity leads to show symptoms of difficulty in sleep and add complications in neurological and chronic diseases. This study was done to find the association between nutrition and sleep duration on subjects suffering from insomnia and its co morbidities in old age adults. A cross-sectional study was done in the Out Patient Department of Geriatric Medicine, Sir Sunderlal Hospital Varanasi. All old adult patients (>60 years) attending the Hospital were enrolled in the study. The insomnia patients were screened with Pittsburgh Sleep Quotient Index (PSQI), dietary consumption, Body mass index (BMI) and nutrition pattern was evaluated on food frequency method. Statistical analysis was performed on SPSS software; Insomnia was seen prevalent in 23% of the old age population sampled (n=200). Among the study population, 15% were obese (BMI > 30 kg/m2 ) and 18% had central obesity. In the population 28% of patients who had insomnia had central obesity factor, which was statistically significant. 32% of old age females showed more insomnia sufferer compared with the male subjects having obese condition. There was a Ushaped association between sleep loss and central obesity. Other comorbidities that showed high correlation with chronic insomnia were diabetes, hypertension and arthritis, while socioeconomic factors were not significantly associated. Diet pattern showed high consumption in dietary fiber, compared to protective foods. A low consumption of protective foods including vegetables, fruits, and whole grains was prevalent among insomnia sufferers. Negligence of Vitamin B and milk supplements intake were significant among female insomnia elderly. Dairy products rich in tryptophan needs to be maintained for melatonin biosynthesis, changes in diet pattern of older adults will be helpful in improving sleep and overall health.