I read a very interesting book called BREATH by James Nestor. In one chapter he talks about the problem with breathing while asleep. For snorers he gives several work-a-rounds; one was applying s small piece of tape to the lips just below the nose. It reduces breathing through the mouth but gives the sleeper the ability to blow around the tape without causing alarm. I tried it and got my wife to try it AND IT WORKS! I recommend anyone with sleep apnea to give it a try at bedtime. It helped me and was a very inexpensive experiment.