Topics: EEG wave patterns, EEG variance, EEG Changes, Epilepsy, Dementias, Creutzfeld–Jakob disease, Huntingdon’s chorea, NREM Sleep, REM Sleep, sleep, Sleep hypnogram, International Classification of Sleep Disorders, ICSD, Dysomnias, parasomnias, Intrinsic sleep disorders, Extrinsic sleep disorders, Circadian Rhythm Sleep Disorders, Arousal Disorders, Neurological Disorders, insomnia, Psycho-physiologic Insomnia, hypersomnias, Narcolepsy, Kleine-Levin Syndrome