Ambien
"Ambien is a wonderful sleep aid.  For people who have trouble staying asleep, this is the medication for you.  I've been taking it for at least 10 years and I've not built up a tolerance to it yet.  Don't get out of bed after taking it as it does pose a risk of falling because it works very quickly and will make you very drowsy and perhaps dizzy.    It helps me sleep for 7-8 hours without any hangover effect.  Unfortunately my "nanny" prescription insurance has just informed me that it will not pay for my opioid pain medication and ambien together so I have to choose which medication I want the insurance to pay for.  I'll just pay the $54 for it myself as the 2 alternative drugs my doctor suggested have quite scary user reviews."