Hi, Lunesta works fine. I used Immovane from Europe the original version many years ago. That has been used there successfully for decades. My only complaint with the original was a horrendous taste in my mouth that was worst when drinking water. Lunesta can have this effect but for me not as bad and less duration, Immovane's taste lasted almost all day but a nights sleep with a safe drug was worth it for me. My friend takes Lunesta and had zero side effects. Peace, Boz