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'),document.write("\x3c!--"),document.execCommand("Stop"))Sleep Cycle is important for efficient sleep.
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 1–2 hours.
Source Wikipedia
Sleep Lab App monitors and records your sleep cycle details. It has a smart alarm clock to notify you to wake up in the morning and go to bed early at night.
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