- Humans have a "biological readiness" to fall asleep in the mid-afternoon
- An afternoon nap as short as 10 minutes can improve alertness, mood and mental performance
- Afternoon naps are especially beneficial in sleep-deprived individuals
- In many cultures, an afternoon nap is an expected part of the everyday schedule
NOTE: in researching this article, I should mention that I learned that naps should be limited to 45 minutes and avoided after 4:00 p.m. to avoid grogginess and negatively impact evening sleep.