%0 Journal Article %T Enhancements to the multiple sleep latency test %A Eleni Giannouli %A Magdy Younes %A Sonia Meza-Vargas %J Archive of "Nature and Science of Sleep". %D 2016 %R 10.2147/NSS.S103596 %X The utility of multiple sleep latency tests (MSLTs) is limited to determining sleep onset latency (SOL) and rapid eye movement sleep latency. The odds ratio product (ORP) is a continuous index of sleep depth with values of 0, 1.0, and 2.5 reflecting very deep sleep, light sleep, and full wakefulness, respectively. We determined the time course of sleep depth during MSLT naps expecting that this would enhance the test¡¯s clinical utility %K odds ratio product %K sleep perception %K idiopathic hypersomnia %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4869791/