I have read this before. I do not understand how you can sleep for 20 minutes. It takes more than 15 minutes just to fall asleep.
Read this carefully: I used to think this way as well. This thinking lead me to the exact wrong strategy for naps. There are many stages of sleep; stage 1 through 4, and REM sleep. These, it is hypothesized, have distinct physiological functions. Most importantly for this discussion, waking up out of each have very different effects. Waking from stage 1 sleep makes you feel immediately refreshed, and people perform b…
I now do this combined with a caffeine nap (green tea) and it works perfectly. There's a point where I deep in my conscious I realize I'm dropping the item. As it hits the floor my eyes open, and I feel refreshed almost immediately afterwards. The time for me is about 25-27 minutes from laying down to the drop.