9 Scientific instruments and apparatus, electronic apparatus, namely, apparatus used for research of sleep state and brain activity; monitoring apparatus, namely, portable monitoring apparatus for monitoring physiological variables, namely, patient variables for research purposes, namely, EEG (electroencephalogram), MEG (magnetoencephalogram), CT(computer tomography), EOG (electrooculogram), EMG (electromyogram), SaO2 (oxygen saturation), CO2 (carbon dioxide) nasal air-flow, body movement, thoracic and abdominal respiratory movement, heart rate, body temperature, rectal temperature, blood pressure, pH level, oesophageal pressure, snoring noises, air pressure, air-flow, humidity; apparatus for displaying graphical research data for sleep state and brain activity, namely, X-Y plotters and display monitors, namely, CRTs and flat panel displays, namely, LCDs; computer software for the control of monitoring apparatus and for recordal, analysis, display, transmission and storage of patient data concerning sleep state and brain activity; computer hardware for acquiring, storing, manipulating, transmitting and displaying data for sleep state and brain activity, namely, memory devices in the nature of blank disk drives, flash memory chips and smart cards, circuit board cards, and computer disks, and discrete memory devices, namely, memory cards; microprocessors for sleep state and brain activity data capturing, processing, displaying and monitoring, microphones; computer software packages, namely, CDs and DVDs containing recorded computer software for acquiring, storing, manipulating, transmitting and displaying data for sleep and brain activity