I nap often (in the sun too). I find there's nothing quite like a stimulating activity though. There's interesting research on caffeine-naps (or nappucinos). E

I nap often (in the sun too). I find there's nothing quite like a stimulating activity though. There's interesting research on caffeine-naps (or nappucinos). Empirically, these are useful--http://www.huffingtonpost.com/2014/09/03/coffee-sleep-power-naps-science_n_5753360.html http://www.huffingtonpost.com/2014/09/03/coffee-sleep-power-...