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In contrast to these infections, sleep disorders develop during or after bacterial infection of the respiratory system. However, it has been argued that such sleep disorders are attributed to the effects of the infection on the respiratory system. Bacterial meningitis and rhombencephalitis caused by Listeria, sarcoidosis, and pneumococcal meningitis induce sleep disturbances. During sarcoidosis, general apnea develops, and the alterations in Listeria infections are likely to be elicited by lesions in the reticular formation, disrupting the respiratory rate and causing oxygen desaturation in REM and non-REM sleep [85–87]. Under these conditions, many arousals, and the quality of sleep declines. Patients with Listeria infections have increased total amounts of sleep, characterized by greater daytime sleep; less nighttime sleep; and longer durations of observed awakenings during the night, resulting in alterations in the sleep-wake cycle—the hallmark symptom in these patients. Yet, the mechanisms of these changes remain undetermined.