Sleep, Slow-wave Sleep, Sleep Enhancement, Sleep Optimization

Observational study: The goal of this observational study is to learn about the association between slow wave activity before awakening and post-awakening psychomotor vigilance task in time-fixed, 2-hour, simulated night naps in healthy individuals. The main question aims to answer is: Is the quantity of slow wave activity immediately before awakening associated with post-awakening psychomotor vigilance task metrics when awakened after 2-hour nap at night?