A sleep disorder, or somnipathy, is a medical disorder of the sleep patterns. Some sleep disorders are serious enough to interfere with normal physical, mental, social and emotional functioning.
Aquatic Exercises for Good Sleep Effects of Aquatic Exercise on Sleep in Older Adults with Mild Sleep Impairment: a Randomized Controlled Trial. Chen LJ., Fox KR., Ku PW., Chang YW. from the National Taiwan University