Find the common multiple. Once you know the length of your typical sleep cycle, then, where possible, plan your waking accordingly. Apparently the approval or disapproval of one's peers is the best reinforcer. Excess feedback from the teacher can be perceived as insincere if it is too effusive or demotivating if it is too discouraging. That is the ideal number for maximum quality, productivity, sense of well-being, and overall health and longevity.
Many companies have official policies that prohibit employees from napping during the workday.
These policies serve public relations purposes and are not consistent with research on productivity. There are safety reasons why some people should not be permitted to nap, but even they would be safer workers if they were allowed to nap while off-duty. A simple, self-administered remedy for women with troublesome mood swings is to try snacking every two to three hours in order to sustain blood sugar levels throughout the day. Women with a tendency toward violent moods that won't go away should consult an endocrinologist for both pharmaceutical and nonpharmaceutical treatment.