Unemployment gives one an opportunity to really analyze dozing, sleeping, drinking habits, etc.
I have found that when I have beers or wine throughout the day I do not doze, but I am a bit sluggish in the afternoon/evening.
If I opt to NOT have a drink, or maybe just a few in the afternoon, I have a tendency to take a nap.
Another way to a certain nap is to spend a couple hours outside in the heat, then come in and lay down on the couch in an air conditioned room.
I plan on publishing a nap study..........I just need a few more years of unemployment.