Last night, though, I was getting over a cold, my nose was in bad shape and I was concerned I wouldn't sleep well, so I took a 25mg Benadryl at bedtime. Seemed to sleep fine, but I noticed in SleepyHead this morning that my AHI was up to 3.46. Clear airway, flow limitation, RERA and Cheyne Stokes didn't change, but obstructive index was 5x normal, and hypopnea index was twice normal.
I realize that every now and then AHI's will go up and I'm not worried about this, just curious. Is it usual for this to happen with a sedating medication? It makes sense that if you're out more deeply your throat muscles might relax more and events could be generated. When I was first using the machine I used Chlortimetron (which has a milder sedating effect) a few nights for my nose and noticed a similar trend.