Occasional pharma sleeping aid

So with great apprehension: the past few nights I've taken the occasional pharmaceutical sleeping pill

I resisted for so long, trying kava, valerian, melatonin, 5htp, tryptophan etc and they all USUALLY work well

But there is the occasional night where if I don't take something stronger I'll toss and turn all night. I'm wondering how bad it is to take a sleeping pill just every now and then until the root cause is corrected. It can't be healthy to barely sleep, either

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