What role does IgE Allergietest play in Schlaf?

The provided context documents contain no information about IgE allergy testing or its role in sleep. IgE tests are used in allergy diagnostics to detect specific sensitizations. Allergic conditions such as allergic rhinitis or asthma can impair sleep through symptoms like nasal congestion, sneezing, or nocturnal coughing. An IgE test may help identify triggers whose avoidance or treatment could improve sleep quality. However, the evidence for this is not derived from the given context. Studies show that allergen immunotherapy for allergic rhinitis can improve sleep quality, but this is not specific to IgE testing. Without direct sources, the statement remains speculative. Evidence grade: unclear.