@SECRET_ASIAN_MAN i've only ever used tylenol PM when i'm in pain and having trouble sleeping. they sell diphenhydramine on its own so that might be preferable to having all that acetaminophen buliding up in your liver. other sleep aids might be an even better option, like melatonin supplements or trazodone.
@dietotaku tried melatonin but great point on the sleep agent. I considered that too.