There have been people who lost a LOT of weight (hundreds of pounds) and were able to put their sleep apnea into remission.
I was NOT one of them. I was close to 300 lbs 3 years ago and had bariatric surgery. I lost down to the 150 lb range and had a follow up sleep study to see if I could get rid of the machine. I am still on the machine.
In other words, your mileage may vary.
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