I think one of the biggest issues is mask fitting. I got a fitting done with a nurse with multiple mask in a room laying back in a recliner to find one that was most comfortable with the machine and was shown how to adjust to get leaks to a minimum.

Some people are just thrown a machine and you figure it out on your own. I don’t think that works for the majority of people, everyone is different so masks should be tried on with a machine at pressure so you have an idea of what is comfortable.

Also trying to use it while relaxing and watching tv or reading helps acclimate to the mask so when trying to sleep it is already normalized.