Didn't know if this should go in medical or here, sorry...
At 15,000' and above, I absolutely cannot sleep. The worst was the night at Mera high camp at 19,000'. I would be lying there and just start hyperventilating. Everything I've read indicates that people who get Cheyne-Stokes are actually asleep when this starts so I'm not sure what it was.
Otherwise I do pretty well at altitude except for a bizarre spaciness/out of body feeling that starts about 17,000' that I can usually climb out of.
I've read a bunch of stuff and the only answer seems to be diamox. I've never taken this but I'm not opposed if it will help me sleep. I realize poor sleep is common at high camps but the two nights on the Mera glacier with no sleep at all were pretty bad.
Anyone have this? Any ideas? Does diamox work for you? Thanks!