He passed a night of grisly dreams, waking once, chilled to the heart with what he took to be a cold sweat.

这一夜他恶梦频仍，还醒了一次，觉得奇寒彻骨，自以为是出了一身冷汗。

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One particular example has it guiding users though an efficient power nap, by starting a timer once they've started dozing and only waking them once they've come out of a deeper sleep state.

ENGADGET: Sony patent application puts electrodes in a pillow, eases you out of slumber

" I remember once waking up from a dream in which my mother, dead now for thirty-three years, was sipping tea at my kitchen table, reading a newspaper on the back of which there was the headline "Wrong Man, Right Name, Convicted in Murder Trial.

NPR: Excerpt: 'Atmospheric Disturbances'