sound asleep

基本解释

Researchers at the University of Toledo reported the case of a woman, 44, who would compose emails while sound asleep.
托莱多大学的研究人员在报告中曾提到过一个44岁的女性，该女性在熟睡时还能写电子邮件。
Researchers at the University of Toledo reported the case of a woman, 44, who would compose emails while sound asleep. She had no recollection of sending the emails when awake.
托莱多大学的研究者们接到一例报告，有位44岁的女性在熟睡的状态下写了一份邮件，而当她醒来后完全想不起来发了邮件这件事。

It was unlikely that anyone could hear us, but the sight of Luisa and of the night porter sound asleep had given me the feeling that if I raised my voice I would disturb their slumber, and my hushed tones immediately infected or influenced the way Viana spoke.
NEWYORKER: While the Women Are Sleeping
He was under a cupboard, sound asleep, and one had only to sniff at him to understand that he had wandered thirsty from bed to the kitchen and drunk at length from the wine bowl instead of the water bowl, and perhaps had had a solitary toddling drunken party all his own before hiding himself away to sleep.
NEWYORKER: A Tiny Feast