What is the highest sleep apnea number?
Sophia Koch
Updated on February 16, 2026
From the rating chart here, we see that an index less that 5 is considered normal. For an
Apnea-Hypopnea Index
The Apnea–Hypopnea Index or Apnoea–Hypopnoea Index (AHI) is an index used to indicate the severity of sleep apnea. It is represented by the number of apnea and hypopnea events per hour of sleep. Apnea is the complete absence of airflow through your nose and mouth.
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