Disclaimer: Sleep and Sleep Analyzer are two distinct devices. Sleep measures sleep quality and snoring. The Sleep Analyzer, an enhancement of Sleep that was released in Europe, offers medical-grade sleep apnea detection.

What is sleep apnea?

Sleep apnea is a potentially serious sleep disorder in which breathing repeatedly stops and starts. If you snore loudly and feel tired even after a full night's sleep, you might have sleep apnea.

The main types of sleep apnea are:

• Obstructive sleep apnea, the more common form that occurs when throat muscles relax
• Central sleep apnea, which occurs when your brain doesn't send proper signals to the muscles that control breathing
• Complex sleep apnea syndrome, also known as treatment-emergent central sleep apnea, which occurs when someone has both obstructive sleep apnea and central sleep apnea
  

How does Sleep / Sleep Analyzer detect apnea?

Sleep / Sleep Analyzer is a highly innovative device as it does not rely on the signals traditionally used to detect sleep apnea, such as nasal airflow or oximetry. Thanks to its pressure and sound sensors, Sleep / Sleep Analyzer is able to detect breathing cessations, snoring, heart and breathing activities, as well as body movements. All of these physiological parameters feed our clinically-validated algorithm, which is in turn able to detect sleep apnea with medical-grade precision.

What is the 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. Hypoapnea is a partial collapse of your airway, limiting breathing. The AHI is calculated by dividing the number of apnea events by the number of hours of sleep.