Thought Diovan was good as I was having no side effects but after about a month I could NOT sleep. Cardiologist said he never heard of that. Went off it briefly and sleep returned. He put me on Benicar and it too was okay for a few weeks until sleep was out of the question. Found out on internet that medications such as antihypertensive and betablockers may cause insomnia. Going to go off all meds and try exercise and "Resperate" which is non medical device clinically approved to lower blood pressure. May as well try it as doctors dont believe me anyway. Just want to push pills!!! Since I have been off all meds for a few days I slept 9 hours last night. Wow what a relief. If the high blood pressure does not kill you the medications will.