deep sleep


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deep sleep

Sleep disorders A popular US term for NREM stages 3 and 4 sleep. See Intermediary sleep, Light sleep.
References in classic literature ?
Then, worn out with anxiety and fatigue, I fell into a deep sleep, and when I again opened my eyes I was once more in the light of day; a beautiful country lay before me, and my raft, which was tied to the river bank, was surrounded by friendly looking black men.
The youth's friend lay down, buried his face in his arms, and almost instantly, it seemed, he was in a deep sleep.
At instants of momentary wakefulness he mistook a bush for his associate sentinel; his head next sank upon his shoulder, which, in its turn, sought the support of the ground; and, finally, his whole person became relaxed and pliant, and the young man sank into a deep sleep, dreaming that he was a knight of ancient chivalry, holding his midnight vigils before the tent of a recaptured princess, whose favor he did not despair of gaining, by such a proof of devotion and watchfulness.
Never have I experienced such a journey before or since--even now I oftentimes awake from a deep sleep haunted by the horrid remembrance of that awful experience.
In less than five minutes, she was in a deep sleep.
All that had been purest and sweetest in it, in the by-gone time, seemed to be renewed by the deep sleep that held her gently.
The results show that men and women get around the same mix of light and deep sleep on any given night.
Slow and speedy brainwaves during deep sleep must sync up at exactly the right moment to retain new memories, according to new UC Berkeley research.
I knew I was not in a state of deep sleep, but my sister told me afterwards that she heard me snoring lightly.
The investigators concluded that deep sleep patterns had no bearing on dementia risk.
Sleep too long and youAaAeAeAEre swimming up fr the groggy depths of deep sleep.
Getting enough sleep can be a problem when there are so many exciting things to see and do, but it is not just about feeling well-rested or tired - both light sleep and deep sleep are crucial for many aspects of health.