I received my Zyppah 5 weeks ago. The first week of using it my mouth and teeth were sore and I had extreme salivation for the first hour when I inserted it. I had read the instructions prior to using and was aware that I would probably experience these symptoms. I will admit that the first two weeks were pretty rough but then I started to sleep without waking myself up by snoring. Now I'm sleeping a deep restful sleep. No snoring and I am symptom-free. Now it's a routine.I slip my Zyppah in my mouth and get a great nights sleep.
Bottom Line: Yes, I would recommend this to a friend
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