Sleeping issue is a term used to describe a variety of sleep-related disorders, such as apnea. Apnea is a condition in which a person's breathing stops and starts during sleep, resulting in poor quality of sleep and daytime fatigue. It can be caused by a variety of factors, including obesity, smoking, alcohol use, and certain medications. Treatment for apnea includes lifestyle changes, such as weight loss, quitting smoking, and avoiding alcohol, as well as the use of medical devices, such as CPAP machines.