Health knows for a long time: lying with your eyes closed when you can't sleep is considered rest?
The clear, still, and closed state of lying with eyes closed actually has a professional term called "resting state", which refers to a BOLD signal (fMRI, functional magnetic resonance imaging) in humans during a clear, closed, and relaxed state. We can imagine sleep as when the computer is turned off, and the resting state as when the computer is in standby mode...