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Sleep cycle. 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]
Withings Sleep. Withings' Sleep tracker is pretty basic. You slide the pad under the mattress and check your stats on the app, which monitors sleep duration and quality, snoring patterns, and ...
Azumio released a smart alarm clock and sleep analysis tool, Sleep Time, on March 28, 2012. [14] By using the accelerometer in mobile phones, the application uses movement-analysis algorithms to measure the user's level of body movement and correlates that with a specific phase of the sleep cycle (Light sleep and Deep sleep). Recognizing when a ...
Fullpower is a Santa Cruz, California -based privately held developer of cloud -based IoT and wearable product technology used for activity tracking and sleep monitoring. Fullpower specializes in wireless technology, microelectromechanical systems, and nanotechnology. [3] The company holds over 125 patents for its intellectual property, which ...
3,564,345 United States dollar (2017, 2018) The National Sleep Foundation (NSF) is an American non-profit, charitable organization. Founded in 1990, its stated goal is to provide expert information on health-related issues concerning sleep. [1] It is largely funded by pharmaceutical and medical device companies.
Polyphasic sleep is the practice of sleeping during multiple periods over the course of 24 hours, in contrast to monophasic sleep, which is one period of sleep within 24 hours. Biphasic (or diphasic, bifurcated, or bimodal) sleep refers to two periods, while polyphasic usually means more than two. [1] Segmented sleep and divided sleep may refer ...