As far as I know, the answer is no. I have never seen any data on the use of hypnosis for snoring. As snoring can be related to several medical conditions, I would recommend finding a licensed medical doctor that can evaluate the situation.
Some people who snore suffer from sleep apnea and require a breathing mask. I have worked with several people who feel like they are suffocating or experiencing a fear response when they wear their prescribed breathing mask at night. I have been able to help those individuals relieve the fear and the suffocating feeling.
William Wood
