I developed this problem at the White Mountain trailhead last year (11,000 feet). After struggling with it for hours, I took a single 125 mg tablet of Diamox, and within an hour I was sleeping like a baby, and stayed asleep for the rest of the night.

Now, whenever I sleep above 10,000 feet, I take a half pill (62.5 mg Diamox) an hour going to bed. Have never had a reoccurrence of the problem. I take Diamox at this low dosage specifically for Cheyne Stokes (I have not experienced AMS on any 14ers so far).