Pain relief plus a gentle sleep aid Non habit forming Helps you fall asleep faster and stay asleep longer. The multi pain relieving power of Advil , plus a gentle, non habit forming sleep aid. When pain keeps you awake, Advil PMs unique Liqui Gel form helps you fall asleep faster and stay asleep longer, for hours of restful sleep. It is the leader among OTC nighttime pain relievers. The pain reliever in Advil is ibuprofen, a non steroidal anti inflammatory drug (NSAID) that when taken as directed is a safe and effective pain reliever and fever reducer. Compared to placebo or no treatment.