Contact: Address 1117 Brighton Beach Ave, 2nd Floor, Suite 2C, 11235 Phone 347-502-2745 About Sleep apnea is a potentially serious sleep disorder in which breathing repeatedly stops and starts. If you snore loudly and feel tired even after a full night's sleep, you might have sleep apnea. If you think you might have sleep apnea, see your doctor. Treatment can ease your symptoms and might help prevent heart problems and other complications.