Polyphasic · Everyman
Everyman
One 3-hour core sleep at night plus three 20-minute naps. Most adopted polyphasic pattern outside research labs.
Schedule
| Block | Start | Duration |
|---|---|---|
| Core | 23:00 | 3h |
| Nap | 08:00 | 20 min |
| Nap | 13:00 | 20 min |
| Nap | 18:00 | 20 min |
Honest assessment
Self-experimenters report adaptation, but total sleep (4–5 hours) is well below the consensus recommendation. There are no long-term controlled trials. If you try it, monitor for the cumulative-cost effect: subjective alertness can stay decent while objective performance degrades.
Source: Van Dongen et al., Sleep 2003