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Good Night (Beatles song) I. I Can't Sleep (song) I'm Only Sleeping; I'm So Tired; Insomnia (Daya song) L. ... Talking in Your Sleep (Crystal Gayle song)
The characteristics of music that have improved sleep quality in the music-sleep literature include slow tempo, small change of rhythm, and moderate pitch variation of melody. [16] The selection of music (self selected or researcher selected) does not appear to impact sleep quality.
Slow-wave sleep (SWS), often referred to as deep sleep, is the third stage of non-rapid eye movement sleep (NREM), where electroencephalography activity is characterised by slow delta waves. [ 2 ] Slow-wave sleep usually lasts between 70 and 90 minutes, taking place during the first hours of the night. [ 3 ]
Ponto-geniculo-occipital waves or PGO waves are distinctive wave forms of propagating activity between three key brain regions: the pons, lateral geniculate nucleus, and occipital lobe; specifically, they are phasic field potentials. [1] These waves can be recorded from any of these three structures during and immediately before REM sleep. [2]
During a normal night of sleep, a person will alternate between periods of NREM and REM sleep. Each cycle is approximately 90 minutes long, containing a 20-30 minute bout of REM sleep. [7] NREM sleep consists of sleep stages 1–4, and is where movement can be observed. A person can still move their body when they are in NREM sleep.
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The song is widely used as a running cameo in The Adventures of Rocky and Bullwinkle and Friends, usually with the excerpt "Many brave hearts are asleep in the deep, so beware, beware". The first few lines, referred to as "Stormy the Night" are sung in Act 2, Scene 16 of Aufstieg und Fall der Stadt Mahagonny by Bertolt Brecht and Kurt Weill .
The sleep cycle is an oscillation between the slow-wave and REM (paradoxical) phases of sleep. It is sometimes called the ultradian sleep cycle, sleep–dream cycle, or REM-NREM cycle, to distinguish it from the circadian alternation between sleep and wakefulness. In humans, this cycle takes 70 to 110 minutes (90 ± 20 minutes). [1] Within the ...