"Hahaha, okay, I'm going to bed. See you later tonight!"
Here's a breakdown of the translation:
* "Hahahah" - This is the same in English, expressing laughter.
* "me boy" - This is informal slang, meaning something like "okay" or "alright."
* "a dormir" - This translates directly to "to sleep."
* "nos vemos" - This means "see you."
* "en la noche" - This translates to "later tonight" or "tonight."
You can also say:
* "Hahaha, alright, I'm going to sleep. See you tonight!"
* "Hahaha, I'm going to bed now. See you later!"