So when people talk about napping like this, do they ever actually "fall asleep"? I cannot possibly imagine falling asleep in 15m in the middle of my work day or whatever.
I don't fall asleep. But just lying in bed, eyes closed, sleepmask on and low Binaural Beats on the ears helps me when i feel a slump. When i set a timer to 12 minutes i usually feel the urge to get up after roughly ten minutes.