The first number on a Home Sleep report is the AI (Arousal Index) which indicates the total amount of times you woke up (arousals) per hour of sleep during the sleep study.
Arousal Index: The number of times per hour the brain briefly activates out of sleep. In OSA and UARS, arousals are directly triggered by breathing events and are a key measure of how much the disorder is fragmenting rest.
3Pittsburgh sleep quality index frequency of pain-related sleep problems during the last month from the PSQI questionnaire. 4Headache days last three months. 5One SM excluded from fast and slow arousal scoring because of loosened electrode.

This particular example perfectly highlights why Sleep Quality And Arousal Index is so captivating.
At altitude, the same objective metrics sleep latency, sleep efficiency, arousal index, proportions of sleep stages, and nocturnal oxygen saturation are commonly altered. Understanding sleep quality at altitude therefore means combining the subjective experience of poor or fragmented...
The arousal index was significantly negatively correlated with total sleep time and all sleep stages (positive correlation with stage 1 and wake). Brief arousals are an integral component of the sleep process. They increase with other electroencephalographic markers as a function of age.

Such details provide a deeper understanding and appreciation for Sleep Quality And Arousal Index.
Keywords: Obstructive sleep apnoea (OSA); heart rate variability (HRV); arousal index; intermittent hypoxia; sleep fragmentation. Submitted . Accepted for publication .
Overall, OAHI, AHI, and the Arousal Index are strongly related to sleep apnea severity, while BMI also plays a role, particularly in its relationship with OAHI and AHI. Age and gender appear to have less influence on the apnea-related metrics.

This particular example perfectly highlights why Sleep Quality And Arousal Index is so captivating.
Total sleep time, sleep efficiency, sleep latencies, WASO and the arousal index were not significantly different between the two nights. During the night with the male partner, awakenings and arousals were unrelated to snoring initiation or exacerbation.