Prevail, you are "talking" to people who are seriously committed to their therapy; those who post here try to support/convince people to adhere to their treatment.there's no harm in missing a night here or there
Obviously, your risk as an individual when you don't use xPAP varies with severity of your apnea, the degree, frequency, and duration of your desaturation events. You haven't provided that information, so it's hard for anyone here to comment specifically.
Also, the risk you run of having a stroke or MI by not using your machine for a day or two is a statistical one. People indulge in behavior that increases their risks every day, for example, smoking, being obese, having unprotected sex, even air travel or driving across town in traffic. Most of the time, nothing bad happens, but once in a while----
And, in addition to the risk of a sudden catastrophic event, there is the long-term, slow damage to vital organs due to hypoxia (again depending on severity). You don't tell us your age now, but as you age, you will become increasingly aware that every neuron is precious, something not to be wasted.