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Letter: Trying to explore sleep's twilight zone

Published 13 November 2024

From William Lloyd, Sydney, Australia

When it comes to trying to tap into sleep’s twilight zone – those moments between being fully asleep and awake – I have been using a simple variation of the Thomas Edison metal ball system in the form of a book, which wakes me suddenly when it falls out of my hands while reading in bed. I am then wide awake and re-read the last paragraph, looking for the exact spot where I was overtaken by the “sleep-onset period” (26 October, p 42).

However, I never seem to find it. The paragraph is initially crystal clear, but a moment later the book falls again, and the process repeats. After about four tries, I surrender myself into the eagerly awaiting arms of Morpheus.

Issue no. 3517 published 16 November 2024

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