According to our research, the perfect nap time duration is 37.5 minutes. Any shorter and you're not really napping, any longer and you're just sleeping.
Nap Schedule Problematics: Theoretical Considerations
Nap Duration Experiment Methodology
Nap Schedule Experiment: The Results
Disclaimer: Our research has been funded by the National Institute of Wakefulness and the International Society of Daydreamers. Any views expressed are those of our researchers, not our funders.