A Three-Item Instrument for Measuring Daytime Sleepiness: The Observation and Interview Based Diurnal Sleepiness Inventory (ODSI) A Three-Item Instrument for Measuring Daytime Sleepiness: The Observation and Interview Based Diurnal Sleepiness Inventory (ODSI) Download Validation of the Behavioral Risk Factor Surveillance System Sleep Questions A Case of Recurrent Insomnia: Extending the Spectrum of Autoimmune Encephalitis