Real Sleep Time—measures actual time asleep—not just time in bed, like other home devices, providing a more accurate assessment of sleep apnea.
RDI and AHI—special indices that determine the severity of sleep apnea.
ODI (Oxygen Desaturation Index)—measurement of blood oxygen levels.
When not enough oxygen reaches the brain, a person awakens from sleep.
Heart Rate—the number of heart beats per minute while sleeping.
Body Position—notes whether you sleep on your back (supine), front (prone) or side, which all influence apnea.
Snoring Intensity (dB)—loud snoring is a major indicator of sleep apnea.
Sleep Stages and Architecture (wake/light/deep)—the cyclical pattern of various NREM and REM sleep stages summarized in a chart called a hypnogram.
REM/NREM Sleep—dreaming sleep characterized byrapid eye movement (REM), the shortest portion of the sleep cycle; Non-REM (NREM) sleep, the largest portion of the sleep cycle, has three separate stages and distinct electrical brain wave patterns.
Sleep Fragmentation—repeated short interruptions of sleep throughout the night, reducing the total amount of time spent in the deepest level of sleep.
Sleep Statistics
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WatchPAT Measures 6 Channels
PAT—Peripheral Arterial Tone, which is a physiological signal that mirrors changes in the autonomic nervous system caused by respiratory disturbances during sleep.
Oximetry—the measurement of oxygen levels in the blood.
Actigraphy—the measurement of body movement while sleeping.
Heart Rate—the number of heart beats per minute while sleeping.
Body Position—notes whether you sleep on your back (supine), front (prone) or side, all which influence apnea.
Snoring—loud snoring is a major indicator of sleep apnea.
