It's not for sleeping either although it can make dome people drowsy. It's an antihistamine.
Histamine is a natural chemical your body releases to help fight allergens and pathogens, but it's also known for causing allergy symptoms like sneezing, itching, and swelling ...
When you're allergic, your immune system overreacts to a harmless substance (allergen).
This causes mast cells to release histamine, leading to allergy symptoms.
Antihistamines: are medications that block histamine's effects to relieve these symptoms.
I just don't think you should take it unless you're treating an allergy.