When I lay on my back it feels like my throat is closing so I sleep on my right side. I take Mestinon at least an hour before bedtime because I produce too much saliva with this med and if I take this med just before bedtime I will wake up coughing - feeling like I'm drowning in saliva. That's also why I don't wake up in the middle of the night to take Mestinon. I also grind my teeth so bad that I've broken almost all my back teeth. All my front teeth are still in great shape. However the Mestinon is helping me with the grinding. I think I was grinding because there wasn't enough saliva in my mouth to begin with. A Neurologist told me it was Bruxism. My Trigeminal Neuralgia usually comes when my mouth is dry too.