I nap for about 20 minutes at about an hour after lunch(usually 1 to 1:30 PM). If I had a 6 hour sleep cycle, I nap for about 40 minutes. I definitely can think and program better after the nap. I nap in my car. I drive out to a Publix lot and do it. I have tinted windows, so people seem not to realize I am napping in it. My real trouble is waking up early. In my office, my CEO shows up at 6 AM and everyone else shows up an hour after that. So I have trouble getting up at 7:30 but I am working on it.