While you're awake, your throat muscles hold the airway open, and air passes through silently.
Asleep, those muscles go loose — more on your back, after a late night, or with a blocked nose. The tongue drops back, the airway narrows, and the throat starts to vibrate. That vibration is the sound that travels through the wall and ends up as a voice note in the group chat.
Earplugs put the problem on your roommate's side. This puts the fix on yours.
Orvell sits under the chin, right over those muscles. When the snoring starts, it gives a little buzz that nudges the muscles to tighten and the airway to ease open. When the snoring stops, it goes quiet.
Nothing in the mouth. Nothing on the face.
No sticky pads. Nothing to buy again.
Only acts when the snoring starts.