Abstract: Background: Sleep is a necessary and vital biological function. It is required for a person’s physical and emotional wellbeing. Barring adequate rest, the brain's ability to function can quickly deteriorate. Aging is a lifelong process, which begins before we are born and continues throughout life. The main purpose of this study is to promote sleep among geriatrics as the sleep disturbance is more common and prevailing among the older age group. Promotion of sleep aids in a better and healthier lifestyle by which most of the serious health consequences and imbalance can be avoided. Objectives:-the primary objective is to assess the level of sleep and finding the effect of deep breathing exercises on the quality of sleep. the secondary objective is to find out the association between quality of sleep with selected sociodemographic variables Methods:-This was a true experimental study, conducted among 60 geriatrics residing in Nirmal Hriday, Under Missionaries of charity, Satya Nagar, Bhubaneswar. Odisha. The samples were selected through simple random sampling and interviewed through a self-structured demographic Performa and Pittsburgh sleep quality index to assess the quality of sleep. Result:-the result shows that the geriatrics who received the intervention show the level of sleep quality is enhanced compared to routine care without exercise. It shows that deep breathing exercises were very much effect on the quality of sleep for geriatrics.