It is a sleeping pill so it is most probably addictive. If you take them every night, you will get addicted fairly quickly and have withdrawals when you stop them. So I am not surprised you are building resistance to them. You may have to talk to your doctor about coming off them and trying something else.
im not to worried about withdrawing from them... i took them a while back same pill before i stopped and there were no signs of withdrawl
she took me off them... and over the course of 3 months we tried an anti depressant to help with sleep and it did not work woth shit so i went back on these and the resistance was gone... mostly gone any ways.... but now its coming back
I used to get high on Zopiclone.
after the first time i started taking them... about a week before i stopped i took one... -nothing- took 2... -nothing- but i really needed to sleep that night, thouroughly thought it through and stupidly decided taking one more would be my last.... woke up sprawled on the downstairs bathroom floor with a blanket over me and no recolection of what happend after that night. i decided than if i need more than one to sleep than it wasnt worth being on them any more. and went off them for the three months