When is Schlaf Labor actually useful?

A sleep lab (sleep medicine center) is useful when there is suspicion of a treatable sleep disorder such as obstructive sleep apnea, narcolepsy, restless legs syndrome, or REM sleep behavior disorder. Polysomnography (overnight monitoring) provides objective data on breathing, oxygen saturation, brain waves, heart rate, and leg movements. It is the gold standard for diagnosing sleep apnea and for titrating CPAP therapy. For simple insomnia without warning signs (e.g., loud snoring with breathing pauses, excessive daytime sleepiness despite adequate sleep duration), a sleep lab is usually not necessary; history, sleep diary, and possibly home sleep apnea testing suffice. In purely subjective sleep complaints without objective findings, the elaborate diagnostics often add no benefit. Important: A sleep lab is a clinical facility – not a lifestyle service. Health insurance covers costs only when a treatable disorder is medically suspected. Without a physician referral, a sleep lab study is not indicated.