Advil?pm pain reliever/nighttime sleep aid helps you sleep better. Advil PM helps you fall asleep faster and stay asleep longer by combining the #1 selling pain reliever with the #1 selling soothing sleep aid (2). (1). Don’t let a backache, minor arthritis pain, joint pain, or other minor nighttime aches and pains keep you awake. Put an End to Pain: Sleep is your body’s natural way of rejuvenating and recovering from the stresses of the day. If pain is keeping you awake at night, try Advil PM for unrivaled pain relief. (3) Ingredients: Advil PM Caplets contain 200 milligrams of ibuprofen (an NSAID) and 38 milligrams of diphenhydramine citrate as active ingredients. (1) When compared to a placebo or no treatment (2) When compared to OTC brands (3) When compared to leading brands.