Conch blowing could help to alleviate sleep apnoea, study suggests

Just pursing my lips and blowing, I can feel the muscle in the back of my mouth going tight. Adding extra resistance from an instrument and time from playing it, would probably build up some muscle quite fast

From the article:

Previous research has also found that playing a woodwind instrument could help with the condition.

I’ve certainly heard the same about the didgeridoo

Eh, I have sleep apnea and played a wind instrument for decades. But mine is a genetic thing.