Again, if you have severe sleep apnea, you probably do need to check out a CPAP. You should talk to your physician. But for people who have minor sleep apnea or sleep apnea that's starting to take hold, these other methods of shifting to becoming a nasal breather are going to be far more beneficial and far more cost effective than going all the way to the CPAP, which, by the way, doesn't really teach you how to breathe properly as much as it does adjust the airflow going into your system.