I slept 4.5 hours per day for a week as part of a polyphasic sleep routine. Most people follow a monophasic sleep schedule, which involves seven to eight hours of continuous sleep every night.

Polyphasic sleep schedules, however, disrupt the widely acknowledged method of getting rest, swapping a lengthy nighttime sleep with multiple naps over a 24-hour period. In an increasingly busy ...

This is common for those who start work at four or five in the morning, for example. POLYPHASIC While this is natural for babies who sleep at least three times daily if not more, some adults have ...