What is polyphasic sleep?

Unlike monophasic sleep – the classic model of 7-8 hours of uninterrupted sleep per night – polyphasic sleep involves dividing rest into several smaller cycles throughout the day and night. This method has been used at various times in history by individuals who wanted to gain more active hours within 24 hours.

Main models
There are several variants of polyphasic sleep:

Biphasic – sleep during the night and a nap in the afternoon (common in many Mediterranean cultures).

Everyman – 3–4 hours of main sleep at night + 2–3 short naps during the day.
Uberman – only 20–30 minute naps spread out 6–8 times a day.

Dymaxion – an extreme version with four 30-minute naps, getting only 2 hours of sleep in 24 hours.

Who has used it?
There are reports that famous personalities such as Leonardo da Vinci, Nikola Tesla and Winston Churchill have experimented with polyphasic sleep to have more time for work and creativity. Today, this method is especially attractive to entrepreneurs, students or individuals engaged in intensive projects, who are looking to increase productivity.

Does it really work?
Modern science views polyphasic sleep with skepticism.

Potential advantages: more free hours per day, flexibility in work, and sometimes temporary focus.

Disadvantages: lack of deep REM sleep, accumulated fatigue, risk to cardiovascular and immune health, and social difficulties (since the routine doesn’t fit most people’s rhythm).

Polyphasic sleep is a bold and intriguing concept, but not always sustainable for long-term health. While some people can handle it for short periods, most experts advise that monophasic or biphasic sleep with afternoon naps remains the healthiest pattern. Ultimately, sleep is not a luxury – it’s the foundation of how the brain and body function.

Photo by Andrea Piacquadio: https://www.pexels.com/photo/selective-focus-photo-of-woman-wearing-eyeglasses-while-closing-her-eyes-3807850/