Insomnia was my worst meno symptom. It was just the total inability to get to sleep - at all. I went for three nights with absolutely no sleep at all before I resorted to sleeping tablets - and that was the worst thing I could have done. Peroxideblader please do not get comfortable taking zopiclone every night. That stuff, like benzos, is horrible horrible stuff once you become dependent, and dependency can happen very quickly for some people. It happened to me and it made my life a nightmare for about 2 years while I weaned myself of diazepam.
Anyway, the best thing I ever did was start HRT. I now sleep like a baby every night. There will be the odd night here and there where I will have trouble sleeping, but that happens to everyone. On those nights I will take a very small dose of doxylamine (an over the counter antihistamine) or a low dose of an amitriptyline AD. Both work very well for me at low doses (no more than about 10-15mg).
As CLKD pointed out above, what risks? If someone is leading you to believe there are supposed risks and side effects then they are using seriously outdated information. Your health will suffer far more from lack of sleep, and by taking zopiclone regularly, than it will by taking HRT.