What is polyphasic sleep? Polyphasic sleep involves taking several shorter sleep periods throughout the day instead of monophasic sleep which is getting your 7-8 hours of sleep in one block of time. A type of polyphasic sleep is the Uberman Sleep Schedule; it suggests that you sleep 20-30 minutes, six times a day, with equally spaced naps every 4 hours. What this means is, you only will get a total of 2-3 hours per day. Under this schedule your sleep times could be 2am, 6am, 10am, 2pm, 6pm and 10pm. The best thing is the times are the same in the AM or PM and repeated day to day so you can keep a regular daily schedule even though it is a very different. Read more »