This is easy. If it is a co-ed sleep over then a parent of the person who's party it is should keep and eye on you kids. To be honest I don't think I would let my daughter have a co-ed party because that's how I got pregnant at 13 but anyway just make sure you have and open convo with your parents and let them know that your friends parents will be watching you guys
whatever you do don't give them the silent treatment because they will forget about it but dont get upset cus it shows your still irrisponcinble but carry on asking cus the more you ask it will push them that little but thurther and they will know you really want a sleepover
if you want to convice your parents for you to get a 3ds tell them how awesome it is and then beg till you get it
You can tell your parents you have to go and study with them and then they will say yes to having a sleepover.
Be nice to your parents.
You don't.
You start behaving! Doing what your told and stop back talking and start studying.
Tell them you will do a much needed task for the family, and ask for your reward to be a trip to the spa.
sweet talk them and sound mature!
Hope
First you have to be invited by the person who is hosting the sleepover. Once you have been invited you should ask your parents for permission to attend. It is then their decision as to whether you attend or not.
I'll make better grades in school and get princible list :0
You should have your sleepover in the living room or the basement, somewhere where there is lots of room. It should be far away from your parents so you can stay up late! :)
Don't be too upset, it may be that your friend's parents are the ones who don't want sleepovers.