Objective Improvements from Napping
Interesting research testing 10, 30, and 60 min naps and their impact on mood, sleepiness, and memory. Note that longer naps resulted in sleep inertia lasting as long as an hour, which means the person is technically impaired during this prolonged “waking up” period.
For those whose work or home responsibilities permit this extended period of sleep inertia post-nap, there are clearcut benefits lasting as long as 4 hours following naps in the range of 10 to 60 min.