I've had good results with a nasal strip (like BreatheRight) plus an anti-snoring appliance (like zQuiet). I had a dentist-provided appliance that cost me $1000

I've had good results with a nasal strip (like BreatheRight) plus an anti-snoring appliance (like zQuiet). I had a dentist-provided appliance that cost me $1000 out of pocket and broke in less than a year (when I had moved out of state); the zQuiet + nasal strip helps just as much and is an order of magnitude cheaper.