Good medicines that work for insomnia.i've tried ambien, (zolpidem)ambien cr, restoril, metrazapine, silenor,trazadone, also otc meds and nothing seems to work?

Ambien (zolpidem): Zolpidem (Ambien (zolpidem)) is indicated for short-term treatment of insomnia with difficulty of sleep onset. Ambien (zolpidem) produces tolerance and dependence when used long-term. Although trazodone is efficacious for sleep maintenance difficulties, its use in insomnia is off-label and is associated with cognitive and motor impairments. Long-term treatment with medication alone is not the optimal treatment strategy