What role does IgG play in Schlaf?

IgG (immunoglobulin G) is the most abundant antibody in blood and plays a key role in immune defense against pathogens. Regarding its role in sleep, direct evidence is lacking. Sleep is known to modulate immune function; sleep deprivation can reduce antibody production, and infections can alter sleep patterns. However, IgG alone is not an established marker for sleep quality or regulation. Circadian rhythms influence immune responses, but a specific link between IgG and sleep architecture remains unclear. The provided context does not contain relevant data on IgG or sleep. Therefore, the evidence is considered unclear. To make definitive claims, studies measuring IgG levels in relation to sleep stages or disorders would be required. In summary, IgG is immunologically important, but its specific role in sleep is not supported by current evidence.