The aim of this study is to examine a new method of device configuration for the Inspire upper airway stimulator. First, we will attempt to determine optimal configuration by quantifying changes in upper airway size with different implant configurations using awake nasal endoscopy. The configuration/voltage that results in the greatest increase in upper airway size and is tolerated by the patient will be selected. Patients will then undergo a sleep study so that increased airway size may be correlated with changes in sleep study parameters including AHI and oxygen desaturation index (ODI). Airway size and sleep study parameters using the standard device configuration (+-+)/voltage will be compared to airway size and sleep study parameters using the test, or "optimal," configuration/voltage to determine the usefulness of awake endoscopy in activation of the Inspire device.

You may be eligible for this study if you meet the following criteria:

• Conditions: Obstructive Sleep Apnea, sleep, OSA, snoring
• Age: 99 years or below
• Gender: All