Sleeping Beauty syndrome: 'For a week, I slept 15 to 20 hours out of every 24'
- Posted on July 22, 2026
- By Le Monde
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- 1 min read
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Sleeping Beauty syndrome: 'For a week, I slept 15 to 20 hours out of every 24'
This extremely rare condition, also known as Kleine-Levin syndrome (KLS), mainly affects boys. It is characterized by episodes of massive hypersomnia lasting one or more weeks, often accompanied by cognitive and sometimes behavioral disturbances.
