Well, I really want to say don't do it, but if you must.
Arrive at 5ish in time for tea at 6ish - normal party food or make your own pizza are favourites.
Leave next morning at 10ish - for breakfast a selection of cereal, croissants, pain au chocolate, juice, smoothies anything you can put out that they can help themselves to.
Put a DVD on when it is time to go to sleep.
Work out where exactly they will be sleeping - it's normal for them to bring their own sleeping bag or duvet and pillow. Dd2s friends all brought three foot wide blow up beds ffs.
Let them get on with it, but have a few party games up your sleeve so that you can entertain them if necessary.
When it's bedtime tell them to go to sleep- they won't.
Make sure you don't have a lot planned for the following day - you will be knackered and will want to bring wine time forward.
They'll probably all bring mountains of sweets with them, so if you are going to do party prizes do smellies or crafty type things.
I hate sleepovers. Fortunately, DDs now seem to prefer just one friend to sleepover at a time instead of a party.
HTH