Tylenol PM is also very heavy with acetamenophin (not sure on the spelling) which is very hard on your liver... ESPECIALLY when combined with alcohol... Because alcohol is especially hard on your liver also. If you drink alcohol on a regular basis, I highly suggest you stay away from the OTC sleep medications. I suggest having the wife/girlfriend relieve your stresses, or if one of those two aren't available... rub one out on your own. Suddenly you stop thinking about your headache and your completely relaxed enough to fall asleep. Just my .02