I have had my sleep appliance for almost a year.  It works very well for me and my wife just loves it.  My CPAP leaked a lot and would wake my wife.  She would then wake me to say it was leaking and keeping her awake.  With this sleep appliance, leaks are a thing of the past.  My wife now sleeps all night long and doesn’t complain and wake me so I sleep all night also.  It’s great for traveling.