Unisom SleepGels, Maximum Strength, 32 count (50 mg Diphenhydramine HCl). Unisom SleepGels reduce your natural urge to stay awake. You not only fall asleep faster, you also sleep soundly and wake up energized. The liquid-filled softgels leave no chalky taste behind like some other pills and are proven to be safe and non-habit forming.