If the person is reclining comfortably, he or she may transition into sleepiness, hypnagogic hallucinations, or a sleep-onset 1968 Olympic long jump medalist Bob Beamon on understanding that he had broken the previous world record by over 0.5 meters ( 2 feet ).
12.
There is REM and non-REM sleep, and Stages I through IV, and " hypnagogic hallucinations, " and " circadian rhythms " to know about, but, in my own particular Book, what Parents of the Sleepless ( the gothic terminology of one reviewer ) are advised to do goes something like the following scenario.
13.
And although much of what Alvarez explores is familiar, he does illuminate particulars like the mind's capacity to solve problems during sleep; the evolution of dream analysis from Freud's time to the present, and the phenomenon of hypnagogic hallucinations, or what Alvarez describes as " the flickering images and voices that well up just before sleep takes over ."
14.
This explanation could also apply to normal sleepers whose commands to their muscles are suppressed . ) ( Note that conventional sleepwalking takes place during slow-wave sleep . ) Narcolepsy by contrast seems to involve excessive and unwanted REM atonia i . e ., cataplexy and excessive daytime sleepiness while awake, hypnagogic hallucinations before entering slow-wave sleep, or sleep paralysis while waking.