Trading doesn't necessarily have to be something you are very active with. I for example consider myself to be an occasional trader, where I buy now, wait for the price to move up or down depending on my position at that time, and then comfortably strike. In some cases you can do so in a matter of days, and in some cases it takes a few weeks. If you play it smart, you can benefit from each direction the market heads into, so it's not that you can't sleep well -- that just plays inside your head. Mining requires you to keep an eye on so many crucial variables, that I see more risk in that part of the market than occasional trading what I do. On top of that, doing this occasional trading, or longer term holding of a certain coin, has proven to be more profitable. But then again, opinions may differ....