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Could you run a country on just three hours of sleep? Japan's PM says she does

Japanese Prime Minister Sanae Takaichi has revealed she gets only zero to three hours of sleep a night, prompting concerns about the toll on her health and decision-making. Her remarks have ignited a national conversation about Japan's demanding work culture, with officials and researchers weighing in on the risks of sleep deprivation.

By Tertius News AI Desk 1 outlet · 1 article Version 1 Coverage Jul 23, 2026 Published Aug 14

Lead

Japanese Prime Minister Sanae Takaichi has revealed she gets as little as zero to three hours of sleep a night, a disclosure that has startled citizens and sparked debate about the demands placed on national leaders and the broader culture of long working hours in Japan.

In a post on X, Takaichi described her typical routine, saying she was pleased to have managed "five full hours of sleep for the first time in ages." She explained that on weekdays, after returning to her official residence, her evenings are consumed with household chores and reading materials from the Prime Minister's Office, often working until dawn.

Coverage Comparison

ABC Australia reported that the prime minister's tweet, which might have been intended as a lighthearted remark, set off a national debate about the hazards of lack of sleep in the top job. The broadcaster noted reactions from Japanese citizens and politicians, as well as comparisons to other world leaders' sleep habits, and discussed the effects of sleep deprivation on the brain. BBC — World framed the story as a human interest piece, focusing on the prime minister's sleep schedule and the conversation it has sparked about Japan's work culture.

Key Claims

Takaichi's sleep admission has drawn reactions from political figures. Opposition leader Yuichiro Tamaki of the Democratic Party for the People urged her to rest more, asking in a news conference: "Why doesn't her entourage provide more support to create an environment in which she can make important decisions with a fresh mind?"

However, some in her government have defended her. Deputy Foreign Affairs Minister Ayano Kunimitsu wrote on X: "Each person has their own various circumstances and behind-the-scenes stories, and on the premise of fulfilling responsibilities in public duties, I would be grateful if you could understand."

Experts have weighed in on the implications of such a sleep schedule. Bruno van Swinderen, a researcher at the Queensland Brain Institute, said a person keeping the hours Takaichi described would be extremely sleep deprived.

Japan's demanding work culture has long been a subject of concern. According to ABC Australia, long working hours are the norm for corporate Japan, where white-collar workers—often referred to as "salarymen"—frequently work up to 12 hours a day. The broadcaster also cited official figures showing that hundreds of people die each year in Japan from strokes, heart attacks, or suicide as a result of overwork, a phenomenon that has come to be known as "karoshi."

Takaichi is not the only world leader known for minimal sleep. The BBC reported that former British Prime Minister Margaret Thatcher got as little as four hours of sleep a night. ABC Australia added that French President Emmanuel Macron is known to get four to five hours of sleep per night and has a tendency to send messages to colleagues in the early hours, and that former German Chancellor Angela Merkel called herself the "sleep camel" for her habit of getting about four hours of sleep a night during her time in office.

Perspectives

Government defenders: Deputy Foreign Affairs Minister Ayano Kunimitsu emphasized that each person has their own circumstances and that the prime minister is fulfilling her public duties, asking for understanding.
Opposition and public concern: Democratic Party for the People leader Yuichiro Tamaki urged Takaichi to rest more and questioned why her entourage does not provide more support to ensure she can make decisions with a fresh mind.
Expert opinion: Researcher Bruno van Swinderen noted that the prime minister's described sleep hours would constitute extreme sleep deprivation.

How this outlet told it

ABC Australia as of Jul 23, 2026, 5:15 AM UTC

Framing: National concern — Concerned

Facts Included:

Ms Takaichi's tweet about her sleep schedule
Reactions from Japanese citizens and politicians
Comparison to other world leaders' sleep habits
Discussion of Japan's work culture and the concept of 'karoshi'
Effects of sleep deprivation on the brain and cognitive function

Read the source article →

What was claimed, and who backed it

Each row is one claim, attributed to the outlet whose wording states it most clearly. Confidence rates how directly the source text states the claim — explicit and unhedged rates high; hedged, pieced-together, or internally inconsistent statements rate lower. It does not measure whether the claim is true. Status counts the distinct outlets we found asserting it — so a single-source claim can still show high confidence, and a multi-source claim can show medium. Every one of those outlets is named beside the status, so you can check the count against the list. For claims extracted before we began storing that list, the row says so: it names the outlet the claim is quoted from and states that we have not recorded which outlets backed it. Outlets wrote at different times, so a figure that evolves — a casualty count, for example — can legitimately differ between rows; check the "as of" time next to each claim's source.

Claim	Confidence	Status
ClaimMs Takaichi's tweet about her sleep schedule sparked a national debate about the hazards of lack of sleep in the top job.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Jul 23, 2026, 5:15 AM UTC
ClaimLong working hours are the norm for corporate Japan, where white-collar workers often rack up to 12 hours of work per day.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Jul 23, 2026, 5:15 AM UTC
ClaimOfficial figures show that hundreds of people die every year in Japan from strokes, heart attacks, or by taking their own lives as a result of overwork.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Jul 23, 2026, 5:15 AM UTC
ClaimA person keeping the hours Ms Takaichi described would be extremely sleep deprived, according to Queensland Brain Institute researcher Bruno van Swinderen.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Jul 23, 2026, 5:15 AM UTC
ClaimFormer British prime minister Margaret Thatcher got as little as four hours sleep a night, according to the BBC.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Jul 23, 2026, 5:15 AM UTC
ClaimFrench President Emannuel Macron is known to get four to five hours of sleep per night and has a tendency to fire off messages to colleagues in the early hours of the morning.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Jul 23, 2026, 5:15 AM UTC
ClaimFormer German chancellor Angela Merkel called herself the 'sleep camel' in reference to her time in office, when she would get about four hours of sleep a night.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Jul 23, 2026, 5:15 AM UTC

Transparency & Audit Trail

2 outlets · 2 articles consulted: ABC Australia, BBC — World 8 claims extracted Version 1 Written 2026-08-14