Are unisom sleep tabs unhealthy?

Moderation: Unisom (doxylamine although sometimes diphenhydramine) over-the-counter sleep aid can help cause drowsiness to help with sleep onset. Sleep hygiene techniques are the first step in getting better sleep. Once you've done that, use in moderation of unisom is generally considered safe in adults only if needed. If you find yourself using it every night or in high doses, see your doctor for more help.