Learn Spanish (Latin America): Bebe esta infusión de manzanilla y dormirás bien. - Drink this chamomile infusion and you will sleep well.

This sentence uses a colloquial conditional structure very common in spoken Spanish: an imperative (command) followed by y and a second verb. By saying Bebe... y dormirás, it means exactly the same thing as Si bebes... dormirás (If you drink... you will sleep), but it sounds much more direct, conversational, and persuasive.

Could I use the present tense for the second half of the sentence, like y duermes bien?

Absolutely. When using this command-based conditional structure, the second verb can be in either the future indicative (dormirás) or the present indicative (duermes). Using the present tense in this context is very natural in Latin America and often makes the promised result feel even more immediate or guaranteed to the listener.

Why does the sentence say infusión de manzanilla instead of té de manzanilla?

Strictly speaking, té refers only to beverages made from actual tea leaves (black tea, green tea, etc.), while herbal or floral drinks like chamomile are an infusión (or an aromática in places like Colombia). While many locals do just say té de manzanilla in casual everyday speech, infusión is the technically precise term you will often see on café menus or grocery packaging.

What happens to this colloquial structure if I need to give this advice formally using usted?