SleepQ+ does an effective job as part of my CPAP therapy. One of the problems associated with CPAP is the unconscious slackening of the jaw muscles and the consequent interruption to therapy. Sleep Q gel provides the lip seal that works effectively to keep therapy constant even when the jaw muscles relax in sleep. In a few short months sleep Q has become an essential part of my nightly CPAP therapy. It is an excellent product that does the job at supposed to do and its effectiveness more than compensates for the inconvenience of applying it regularly.