This chapter describes nursing care for sleep disorders in the primary care setting. The most prevalent sleep disorders in adults and older adults, and those most commonly seen in primary care settings are insomnia, sleep-disordered breathing, and restless legs syndrome. There is a compelling need for widespread access to sleep assessment and treatment among the large population of primary care clients who have sleep disorders-many of which are currently undetected. Primary care providers, especially nurses, are in an ideal position to assess, implement, and evaluate sleep promotion and sleep disorders treatment in primary care clients. The reach, adoption, implementation, and long-term maintenance of sleep promotion and sleep disorders treatment is most likely to be successful if implemented at the practice/organizational level. Nurses, especially advanced practice nurses play a pivotal role in implementing and evaluating policies and procedures to assure the translation and uptake of these important services.