“Regarding daily lifestyle, many may find themselves naturally biphasic sleepers with a main core sleep at night that covers most or all of their SWS and REM need, complemented with a nap of varying lengths during the day depending on how sleepy they are.”
“On this schedule, there is no requirement to stick to any nap durations. They can last anywhere from 10m to 2h depending on day.”
“More productivity during the daytime and a more proactive lifestyle (more heavy sports, more social time, alertness boost from entrained napping habits).”
“When daily napping routine grows to be consistent, the combination of a restful core sleep at night and a good daytime nap can outperform monophasic sleep in terms of regulating productivity and generating energy.”