ABOUT THE SLEEP CYCLE (cont.)
Stage 5 of sleep, also known as REM (rapid eye movement) sleep, is marked by extensive physiological
changes, such as accelerated respiration, increased brain activity, rapid eye movement, and muscle
relaxation. People dream during REM sleep.
In the first third of the night, Delta sleep stages last longer than REM stages. As the night progresses,
Delta sleep diminishes in length. By the last third of the night, Delta sleep usually ceases, while REM
stages lengthen.
SLEEPTRACKER® may find multiple almost-awake moments within the sleep cycle. Almost-awake
moments may also vary in frequency throughout the night.
By monitoring your sleep cycles for optimal waking moments during the preset ALARM WINDOW,
SLEEPTRACKER® finds those almost awake-moments and gently wakes you when you’re most alert.
The result? You wake up refreshed instead of groggy.Waking up has never been easier.
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