insomnia
"Genuinely hate this medicine! The side effects of dry mouth and a terrible taste (even though pills are coated) make it impossible not to drink extra water.  Drinking extra water caused me to wake to pee in the middle of the night every night. One night I was so groggy & out of it - feeling really drugged - I fell and hit my head, shoulder & elbow. In the week I took Lunesta, I never got more than 4-5 hours sleep & each night to use the bathroom.  My sleep tracker showed little REM. Dry mouth was constant day & night. I never woke refreshed once & always felt like I had a residual “hangover” of a drugged feeling in the AM. I took Lunesta because Ambien seemed to stop working for me. I took it years ago & couldn’t remember why I disliked it."