Yup, I also noticed this. I wore a pulse oximeter every night which measures your heart rate, and it jumped from around 60 to 80 just because of alcohol one ni

Yup, I also noticed this. I wore a pulse oximeter every night which measures your heart rate, and it jumped from around 60 to 80 just because of alcohol one night. Crazy! That was the biggest effect I saw by far, more than all the sleep apnea variables I was trying to measure! Granted I don't drink often, and metabolize alcohol poorly, but still that's a huge difference. FWIW I'm not out of shape; I commuted 1h / day by bike for over a decade, and was a medically normal weight, which is maybe 20-30th percentile in the population.