I write letters

Dear Sprout,
For your information, the hours between 2 and 5 am are generally considered ideal for SLEEPING, unless you are an owl, a bat, or a college student. As you do not fall into any of these categories, it would be greatly appreciated if you would desist from your nocturnal wakefulness. We enjoy hanging out with you, but if you don't let us get some sleep we may have to consider selling you to the highest bidder.

Sincerely,
your exhausted parents