The makura gaeshi, or pillow flipper, was thought to cause kanashibari, otherwise known as sleep paralysis. It happens when you believe you've woken up in bed, but you're actually somewhere between wakefulness and sleep. You’re aware of the room around you, but there's a subtle change in the air. You try to move, but you're frozen. You try to call out, but you can't make a sound. It's a terrifying experience.

Visit the Uncanny Japan website to read the show notes and transcript.

Uncanny Japan is author Thersa Matsuura. Her other shows are Uncanny Robot Podcast and The Soothing Stories Podcast. Check out her books including The Carp-Faced Boy on Amazon. If you'd like to help support the podcast and have a bedtime story read to you monthly, please visit Patreon.

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Credits

Intro and outro music by Julyan Ray Matsuura