Posted inEditor's Pick

Night Shifts

“Clearly dreams do something for us,” writes Michael W. Clune. “If not, why would evolution have endowed us with the capacity?” In this essay, Clune explores the fascinating world of dream engineering via a device called the Dormio, which enables a person to shape the images that appear during hypnagogia, the transitional stage between wakefulness […]

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A look at hypersomnolence, a condition that causes a person to sleep excessively, and the difficulty of treating a rare sleeping disorder: Sumner needed sleep like an addict needs a fix. ‘It was this overpowering desire in me, a physical urge,’ she says. ‘And there was always the hope that, maybe this time, I would […]