Sometimes no medical cause or explanation can be identified and this condition is known as idiopathic hyperhidrosis, which can affect different parts of the body (such as the palms, armpits, etc.) Causes of Waking Up Sweating. There are many possible causes for you to wake up sweating.
The first myth, that darker roasts have more caffeine, largely comes from people mistakenly associating caffeine levels with flavor. The bold flavors of dark roasts are thought to be stronger, and therefore, contain more caffeine. Caffeine isnât the chemical that produces the bolder flavors, though.
The Takeaway: If you are brewing coffee at home using a scoop(brew by volume), then the odds are good that there is less caffeine in your dark roast coffee, but if you brew by weight or if you go out for coffee, then dark roasted coffee will contain more caffeine.