I've read before that sleep may serve a valuable function for your brain, that it actually benefits from down time to process new information, etc. So, it may be the case that the extra time could come with a trade off of a lesser functioning brain. Perhaps, as you hinted at, a relaxing non-sleep practice like mediation could offer some similar benefits (though it seems a bit different, and then you are still having to spend that time at rest).

Sleep has a pretty substantial role in our culture, it's a bonding activity both intimately (say with a lover) or socially (such as having a sleepover with friends growing up). Of course, we would develop new rituals no doubt.

It also forces us to physically rest, and break up our work schedules, which some people may need a forcing function to do that (given how many unused vacation days there are in the U.S. on average, for example, some people may need to have a forced resting time).

Physically, my suspicion (though not at all vetted) is that sleep hours probably decrease your longevity less than waking hours (all other things being equal with an otherwise healthy lifestyle), so I wonder if you'd really get more time, or just die much younger on average?

To answer my own question, its probably somewhere along the Seattle (the city where I live) waterfront. When its been cloudy for a couple of days, and I need to get out, I'll go stand on a pier in the drizzle and overcast, take some headphones, listen to some favorite songs, and just watch the water and the boats on the bay. It always helps soothe me, and reminds me of the things I love in life.

I too love trackball mice, and had to start using them for gaming as my hands / wrist could no longer do regular mice for long periods of time. I've only tried a couple of the Logitech ones. First the Trackman Marble, but that one would make the middle of the back of my hand sore. Second, I tried the M570, and that has worked surprising well. I've reprogrammed the extra up/down buttons to be double click and toggle holding right click respectively, and that has worked well for me and a variety of games.

Which trackballs have your tried for gaming? And what are your goals for the one your are creating?