> Steve, are you assuming the predosing with Diamox will avoid sleep issues at 10,000ft camping at HM?
Yes, along with a sleep aid. Diamox does help with the Cheyne-Stokes periodic breathing/apnea problem that awakens people. And the fact that they will just be driving to 10k and sleeping, not hiking should help. I am sure the strenuous exercise and lack of sleep contributed to their problems.