Find out how doctors diagnose sleep disorders in children and adults, including information on sleep tests. Tests Diagnosing Insomnia Find out which tests doctors use to diagnose insomnia. Diagnosing Sleep Apnea Know what to expect from a sleep apnea test. Diagnosing the Cause of Snoring Why do you snore? Is it a serious health problem? Find out. Diagnosing Narcolepsy Explore medical tests for narcolepsy symptoms. Diagnosing Daytime Sleepiness (Hypersomnia) Always drowsy? Medical tests may show why. Diagnosing Circadian Rhythm Disorder Check tests for “body clock� problems (circadian rhythm disorder). Diagnosing REM Sleep Behavior Disorder Learn more about sleep studies and various imaging tests used to diagnose this condition. Medical Tests for Bedwetting in Children Is kids’ bedwetting just a phase or a health problem? Find out. Finding the Cause of Sleepwalking Some sleepwalkers may need medical tests.