An unfortunate reality of being diagnosed with obstructive sleep apnea (OSA) is that you can't really take a holiday from the disorder. Living with untreated OSA in the long term increases the risk of coronary artery disease, heart attack, heart failure, and stroke. And it can be a vacation-ruiner even in the short term, causing severe daytime drowsiness, irritability, depression, and decreased libido. Not a great recipe for a fun getaway.