Was just listening to the superhumanradio podcast last night and he was saying that he read a study where the subjects took ambien only 18 times in one year, and their chances of getting cancer dramatically increased for the next 2 years. Sedation is not sleep, unfortunately. As a nurse, I used to think the 2 worst medications you can take is stomach acid reducing medications and cholesterol lowering medications, but I think any medication that’s taken before bed to induce sedation, instead of letting your body go through the natural sleep cycles, has to be worse for overall health. Sleep will always be the #1 factor in regards to health, longevity and disease prevention. Anytime you mess with that, like in the case of taking sleep medications, you’re just asking to die early, and most likely due to an extremely preventable chronic disease.I take a little more than 1/4 pill of Zolpidem ER 12.5 mg before bed. It helps me sleep for about 5 hours. I keep 1/4 pill next to the bed with water. When I waked up I chew the 1/4 pill and fall back to sleep quickly. It last about 2.5 to 3 hours. So now I am finally getting 8hrs of sleep. Works pretty good.