I was diagnosed with sleep apnea about 3 1/2 years ago and have been using a cpap ever since. I've debated getting one of the small battery powered CPAP machines so I can resume backpacking & backpack hunting but have not yet.
My dentist introduced me to a new(ish) treatment called Vivos. As part of the evaluation, they did a CT scan on my head & neck. My trachea narrows to 1-2 mm. Normal male is 25 mm.
The Vivos treatment (oral appliance) is supposed to increase the trachea to near normal size over the course of 12-18 months. Many patients don't need their cpap after 2-3 months of Vivos treatment. I really hope it works!
vivoslife.com