I was on temazepam 20mg for 3 years it began well I'd sleep a full 8 hours but after a few months of taking it I became dependant and tolerant of it I'd still sleep but I'd wake up to 8 times anight after years of this I saw my doctor and asked to be put on zopiclone instead but that doesn't work so I've given up on sleeping tablets. Hopefully it will last and work longer for you I wish you well