Could you tell me if this is correct and if it's not, how I can fix it? I have a live spanish call and I would prefer not to get any incorrect!

Question: Estás cuidando a unos niños y es hora de acostarse. Usa el imperativo (command form) y diles lo qué tienen que hacer. (Use 3 command forms and make sure that they are plural.)

Answer: Vamos a usar nuestro pijama.
Cepilla tus dientes.
No te alér más te al aire.