Can a 1 year old have sleepy time tea?

So i have to take a trip for work and my 1 year old can't come with. His dad works night which mean he will be staying with his God mom. The problem is he has never stay alone with anyone. Me or his dad or both are always around. The way our schedule is set up no else has ever even watched him. I know he won't sleep because he never sleep well in places thats not his home and he will be pretty upset we not there. His father will be there during the day but i was wondering can he have sleepy time tea at night? A friend told me its some for kids and it works well. She gives it to her niece and nephew and her grandma gave it to them as kids. I know it natural but i still rather be safe.