Once again, Los Angeles dwells at the bottom of the list. It has no sense of history because no one lives there long enough to create history. Besides that, you wouldn't want to know it anyway. Almost anywhere on the Eastern Seaboard. This is another of my personal favorites.
Rest is vital when traveling, especially as one ages.
Ironically, Las Vegas is the most sleepable city. The net result of this endless similitude is that it doesn't matter what time it is when you go to bed or when you wake up. Everything is just as you left it. At the other extreme is New York City, where sleep must be induced artificially and everything is loud or louder. Bringing up the rear once again is Los Angeles, tied for final marks with the rest of Southern California.