I have drugs that I can take but I should not take all the time. If I think, I will be okay tonight. I will not take in Ambien. I will often wake up at 3 am wishing I had. Because, like now, I am awake and now it is too late to take it.
What makes matters worse is now you hear of studies being released that say weight gain is associated with lack of sleep. Great, another thing for me to worry about while I am lying there not sleeping.